RBI Grade B

RBI Grade B

Trigonometry is a part of advanced math and is generally asked in SSC, state level and Railways exams like SSC CGL, SSC CPO, RRB NTPC and SSC CHSL etc. It is one of the important branches in the history of mathematics. The concept of trigonometry has been given by a Greek mathematician named Hipparchus. If you are preparing for any exams specified above, it is recommended to have a firm grip over this topic. Let’s understand about trigonometry in detail.

  • Question : 1

    If lsin3 ɵ + mcos3 ɵ = sinɵ cosɵ and lsinɵ = mcosɵ, sinɵ ≠ 0, cosɵ ≠0, then (l2+m2) equal to-

    Answer: 1


  • Question : 2

    If asin3 ɵ + ccos3 ɵ = sinɵ cosɵ and asinɵ = ccosɵ, sinɵ ≠ 0, cosɵ ≠0, then (a2+c2) equal to-

    Answer: 1


  • Question : 3

    If bsin3 ɵ + ccos3 ɵ = sinɵ cosɵ and bsinɵ = ccosɵ, sinɵ ≠ 0, cosɵ ≠0, then (b2+c2) equal to-

    Answer: 1


  • Question : 4

    If bsin3 ɵ + tcos3 ɵ = sinɵ cosɵ and bsinɵ = tcosɵ, sinɵ ≠ 0, cosɵ ≠0, then (b2+t2) equal to-

    Answer: 1


  • Question : 5

    If rsin3 ɵ + tcos3 ɵ = sinɵ cosɵ and rsinɵ = tcosɵ, sinɵ ≠ 0, cosɵ ≠0, then (r2+t2) equal to-

    Answer: 1


Important Chapters In Quantitative Aptitude

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