Question

Whai is the value of sin^2A+sin^2B+sin^2C if the triangle is a right triangle ?​

Answer 1

Step-by-step explanation:

Correct option is D)

Let C=90

0

Then,

sin

2

A+sin

2

B+sin

2

C=sin

2

A+sin

2

B+1

=sin

2

A+sin

2

(

2

π

−A)+1

=sin

2

A+cos

2

A+1

=1+1

=2