Question

cos² A + 1/1 + cot² A = 1​

Answer 1

please mark as brainliest

Answer 2

Answer:

proof

Step-by-step explanation:

we know

$1 + \cot^{2} (a) = \cosec(a)$

So, it will be

$\cos^{2} (a) + \dfrac{1}{ \cosec^{2} (a) }$

$= \cos^{2} (a) + \sin^{2} (a) = 1$

Hence proof