Trigonometry 2 Mark Creative Question Paper With Answer Key

10th Standard

    Reg.No. :
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Maths

Time : 00:30:00 Hrs
Total Marks : 30

    2 Marks

    15 x 2 = 30
  1. Given tan A \(\frac { 4 }{ 3 } \) find the other trigonometric ratios of the angle A.

  2. Prove that \(\frac { sin\theta -cos\theta +1 }{ sin\theta +cos\theta -1 } =\frac { 1 }{ sec\theta -tan\theta } \) using the identity sec2θ= 1+ tan2θ.

  3. Prove that sec A (1 - sin A) (sec A + tan A) = 1.

  4. In a right triangle ABC, right-angled at B, if tan A = 1, then verify that 2 sin A cos A = 1.

  5. \(\frac { sin\quad \theta }{ 1+cos\theta } +\frac { 1+cos\theta }{ sin\quad \theta } =2cosec\theta \)

  6. \(\frac { tan\quad A }{ 1\quad sec\quad A } ​​​​\frac { tan\quad A }{ 1\quad sec\quad A } ​​​​2cosec\quad A\)

  7. If tan A=\(\frac{3}{4}\), then sin A cos A=\(\frac{12}{15}\)

  8. (sin ∝+cos ∝)(tan ∝+cot ∝)=sec ∝+cosec ∝

  9. \(\sqrt3\)1 (3-cot30o)=tan3 60o-2sin60o

  10. \(1+\frac { { cot }^{ 2 }\alpha }{ 1+cosex\alpha } =cosec\alpha\)

  11. tan θ+tan(90o-θ)=secθ sec(90o-θ)

  12. Find the angle of elevation of the sun when the shadow of a pole h metres high is \(\sqrt3\) h metres long.

  13. If \(\sqrt3\) tan θ=1, then find the value of sin2θ-cos2θ

  14. A ladder 15 metres long just reaches the top of a vertical wall. If the ladder makes an angle of 60o with the wall, finf the height of the wall.

  15. Simplify (1+tan2θ)(1-sinθ)(1+sinθ)

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