Question

Find the values of angle A for which the following is true sin A=0 and cot= -1

Answer 1

Answer:

A=0 and π

Step-by-step explanation:

It is given that $sinA=0$ and $cotA=-1$, we have to find the value of angle A for which  $sinA=0$ and $cotA=-1$ is true.

Thus, $sinA=0$

⇒$A=sin^{-1}(0)$

⇒$A=0$

Thus, if  $sinA=0$ then $A=0$.

And  $cotA=-1$

⇒$A=cot^{-1}(-1)$

⇒$A={\pi}$

Thus, if $cotA=-1$, then $A={\pi}$.