Question

class 10 trigonometry question​

Answer 1

Answer:

please mark me as the brainliest

Step-by-step explanation:

sinA+$sin^{2}$ =1

sinA=1−$sin^{2}$A

sinA=A

Now

$cos^{2}$A+$cos^{2}$ A.$cos^{2}$A

=sinA+sin 2A

=1 ...(given)