$\cos 15\pi =?$

Important Questions on Trigonometry

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 34

$\sec 6\pi =?$

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 35

$\tan \frac{5\pi }{4}=?$

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 36

$\sin \left(765°\right)=?$

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 37

$\cot \left(-600°\right)=?$

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 38

If $\sin x=\frac{-2\sqrt{6}}{5}$ and $x$ lies in quadrant $III$, then $\cot x=?$

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 39

If $\cos x=\frac{-\sqrt{15}}{4}$ and $\frac{\pi }{2}<x<\pi$, then $\sin x=?$

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 40

If $\sec x=-2$ and $\pi <x<\frac{3\pi }{2}$, then $\sin x=?$

EASY

11th West Bengal Board

IMPORTANT

WBCHSE Mathematics for Class 11>Chapter 33 - Trigonometry>EXERCISE 1>Q 41

If $cosecx=\frac{-2}{\sqrt{3}}$ and $x$ lies in quadrant $IV$, then $\tan x=?$