CSIT Trigonometry MCQs

6. If tan²x = 1 then x is [2075]

nπ ± π/4

nπ + π4

nπ - π/4

± π/4

7. Sin(2sin^-1x) = [2075]

$\sqrt{1 - x^{2}}$

$2 x \sqrt{1 - x^{2}}$

$2 x (1 - x^{2})$

$\sqrt{2 x (1 - x^{2})}$

6. The value of sin(cos^-1 4/5) is [2074]

4/5

3/5

5/4

5/3

7. If tan²x = 3 then x is [2074]

nπ + π/3

nπ - π/3

nπ ± π/3

5/3

8. The value of sin(cos^-1x) is[2073]

1-x²

1+x²

$\sqrt{1 - x^{2}}$

9. If cosec x²x - 2 = 0, then x is [2073]

± π/6

± π/4

nπ ± π/4

nπ+π/2

6. If sin²x = 1, then x is [2072]

π/2

± 1

- π / 2

nπ ± π/2

7. The value of sin(tan^-1x) is[2072]

$x$

$\frac{1}{1 + x^{2}}$

$\frac{1}{\sqrt{1 + x^{2}}}$

$\frac{x}{\sqrt{1 + x^{2}}}$