Question

cos squared theta + sin squared theta equal to

Answer 1

hellooooooo .........sinsquare theta + sin square theta equal to 1

Answer 2

#AlexaRousey here!!

Question :

sin^2¢ + cos^2¢ =?

Draw a triangle ABC, right angled at B.

Suppose angle A be ¢.

Since sin¢ = BC/AC

& cos¢ = AB/AC

Put values ;

= (BC/AC) ^2 + (AB/AC) ^2

= (BC^2 + AB^2) / AC ^2

= AC^2 / AC^2

= 1

Hence sin^2¢ + cos^2¢ = 1.

Thanks!!