Question

prove that sin^2 A+ cos ^2 A = 1​

Answer 1

Step-by-step explanation:

We know that

sinA = Opposite side / hypotenuse

cosA = Adjacent / hypotenuse

we also know that Hypotenuse ^2 = (opposite side square ) + (adjacent square)

when we Add sin^2 A + cos^2 A we get

(opposite square + adjacent square )/ Hypotenuse

which is equal to 1 .

Hope you understand.......!!!!!!!

Answer 2

Answer:

sin²A= (P/H)²

cos²A=(B/H)²

••= (P/H)²+(B/H)²=1

NOTE:- IF YOU PUT ANY NUMBER IN PERPENDICULAR , HYPOTENUSE AND BASE, YOU WILL GET ANSWER AS 1