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Jamb Series 27: Solve Jamb Maths Without Scientific Calculator

Modified On Dec 3, 2021 By Isaac

How do I solve Jamb mathematics without a scientific calculator since most of the questions require the use of a scientific calculator? This question shall be fully addressed in this article.

Like you may know, Jamb doesn’t allow the use of a scientific calculator. However, you will be given a basic calculator. This calculator is generally referred to as Jamb calculator.

The major drawbacks of the Jamb calculator in solving maths are as follows:

  • It doesn’t have trigonometric functions like sine, cos and tan.
  • It doesn’t have logarithmic and exponential functions.
  • There are no integral and different functions in Jamb calculator.
  • You cannot use it to solve advance surds.
  • It is a single line calculator.

Now, you may be wondering how to solve the hot jamb topics above without the use of a powerful calculator. Let me show you the various ways to solve Jamb mathematics without the use of scientific calculator…

PAGE CONTENTS

  • How To Solve Jamb 2021 Trig Ratios Without Calculator
      • How To Solve Jamb Special Angles:
  • How To Solve Jamb Logarithm Without Calculator
      • Properties of Logarithms
  • How To Solve Differentiation And Integration In Jamb Mathematics
      • Other Guide On The Series:

How To Solve Jamb 2021 Trig Ratios Without Calculator

The only trig ratios that Jamb set in UTME examination are special angles. Special angles usually have standard values that you should know. You don’t need a calculator to attempt them.

For example, if you are required to find the value of Sin90° in Jamb, you don’t need to punch your calculator. Sin90° is a standard trigonometric function with standard answer. Simply, Sin90° = 1.

Simply, Sin90° = 1.

How To Solve Jamb Special Angles:

jamb trigonometry
Source: brownmath.com
  • sin 45° = cos 45° = (ˆš2)/2tan 45° = 1
  • sin 30° = ½, sin 60° = (ˆš3)/2cos 30° = (ˆš3)/2, cos 60° = ½tan 30° = (ˆš3)/3, tan 60° = ˆš3
  • For angle A = 0, 30° 45° 60° 90° ”” or 0, Ï€/6, Ï€/4, Ï€/3, Ï€/2 ””sin A = ˆš0/2, ˆš1/2, ˆš2/2, ˆš3/2, ˆš4/2cos A = ˆš4/2, ˆš3/2, ˆš2/2, ˆš1/2, ˆš0/2tan A = 0, ˆš3/3, 1, ˆš3, undefined

How To Solve Jamb Logarithm Without Calculator

Jamb usually gives you the standard log values to use. All you need to do is simplify the expression and then substitute the standard logarithm values given.

The standard values are usually given after the questions. You would see something like; Take log10 = 1 and log15 = 1.1760912590556811. Hope you understand?

Properties of Logarithms

loga 1 = 0 because a0 = 1
No matter what the base is, as long as it is legal, the log of 1 is always 0. That’s because logarithmic curves always pass through (1,0)
loga a = 1 because a1 = a
Any value raised to the first power is that same value.
loga ax = x
The log base a of x and a to the x power are inverse functions. Whenever inverse functions are applied to each other, they inverse out, and you’re left with the argument, in this case, x.
loga x = loga y implies that x = y
If two logs with the same base are equal, then the arguments must be equal.
loga x = logb x implies that a = b
If two logarithms with the same argument are equal, then the bases must be equal.

How To Solve Differentiation And Integration In Jamb Mathematics

Generally, Jamb differentiation and integration questions don’t require the use of calculator. You would be given questions as simple as ABC. E.g Integrate SinΘ. The calculus part of jamb maths is usually fun to solve.

Conclusion: It is true that Jamb doesn’t give out scientific calculator to candidates. However, you got all it takes to attempt all Jamb maths without Big calculators. The basic calculator given by Jamb is enough for you to score very high in Jamb 2021 mathematics.

See Also: How to pass Jamb once and for all

Question for You: Do you still remember the laws of indices?


Other Guide On The Series:

Part 1 to 15: Summary of part one to fifteen
Part 16: Join my Jamb WhatsApp Group

Part 17: Books to Read for English
Part 18: Textbook to read for Jamb Maths

Part 19. Book to read for Jamb Biology
Part 20: Jamb chemistry textbook

See latest post on my Jamb series.


Related

Jamb Series 10: Jot Down While Reading
Jamb Series 9: Reasons To Jot Down Points
Jamb Series 29: Jamb Candidates Can Use Rough Paper
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About FlashIsaac

FlashLearners CEO, Students Advocate, SEO Expert And YouTuber

25 Comments

  1. Oluwanifemi says

    I Find this very Useful
    Thanks a lot

    Reply
    • Ismail ade says

      Thanks for the article I really appreciate it

      Reply
  2. Anonymous says

    Thanks for this article.

    Reply
    • Isaac Inegbenehi says

      You are welcome dear

      Reply
    • Isaac Inegbenehi says

      You are welcome

      Reply
  3. Prince says

    Sir can I get to you, I want help in mathematics seriously thanks sir

    Reply
  4. Paul A.ski says

    Fantastic 💙 thanks alot🙏

    Reply
  5. hezekiah victor says

    tankx sir

    Reply
  6. Simi says

    I will try my best to use this method
    Thank you sir

    Reply
  7. Bolex badmus says

    Plsss I don’t really understand dis mathematics sir
    Pls help me out

    Reply
  8. Anonymous says

    plsss I don’t really understand how to solve mathematics questions
    plsss how do I go about it in jamb
    plsss my exam date is fast aproching
    plsss help me

    Reply
  9. Ebite bright emmanuel says

    God bless you so much.

    Reply
  10. Amazing says

    Thanks so much

    Reply
  11. Anonymous says

    I WILL TRY AND SEE

    Reply
  12. Rabiat muhammed says

    thanks so much
    may the lord increase your understandin

    Reply
    • Isaac Inegbenehi says

      Amen… I am glad you found it helpful

      Reply
  13. Eprianjosh says

    Wow God help us and thank u for ur support may God continue to bless u abondantly

    Reply
  14. Abubakar says

    U say subscription is imposible but people are pasin

    Reply
  15. Btr says

    You are good bro

    Reply
    • Isaac Inegbenehi says

      Thanks Btr

      Reply
  16. Gerald chikezie says

    Indeed you are David of our time God will surely bless u for your work

    Reply
    • Isaac Inegbenehi says

      Amen

      Reply
  17. Quwam says

    pls i need the shortcut for post utme

    Reply
  18. Martins says

    Cool, thanks

    Reply
  19. A O says

    I will try and see…..

    Reply

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