Question

sin (45° + θ) – cos (45° – θ) is equal to

Answer 1

Answer: 0

Step-by-step explanation:

sin(45 + θ) – cos(45 – θ)

=sin(45 + θ) – sin{90- (45 – θ)} (since, cos θ =sin (90 – θ))

= sin(45 +θ ) – sin{45 +θ}

=0

NOTE:θ represents theta

Answer 2

Answer:

sin(45+tita) - cos(45-tita)

=sin (45+tita) - sin(90-(45-tita))

=sin(45+tita) - sin(45-tita)

{cancel both}

u get,

=0