Question

g) (1 + sin a - cos a)² + (1 - sin a + cos a)² = 4 (1-sin a . cos a)​

Answer 1

Answer:

Two

Step-by-step explanation:

(sinA−cosA)

2

+(sinA+cosA)

2

=sin

2

A+cos

2

A−2sinAcosA+sin

2

A+cos

2

A+2sinAcosA

=sin

2

A+cos

2

A+sin

2

A+cos

2

A=1+1=2

(since, sin

2

A+cos

2

A=1)