Question

find the value of: sin(45+A)-cos(45-A)

Answer 1

answer is 0 thanks.......

Answer 2

Answer:

The value of sin(45+A)-cos(45-A) = 0

Solution:

We know that,

$\boxed {sin(90-\theta)= cos\theta}$

Here,

sin(45+A) - cos(45-A)

= sin(45+A)-sin[90-(45-A)]

= sin(45+A) - sin(90-46+A)

= sin(45+A)-sin(45+A)

= 0

Therefore,

Value of sin(45+A)-cos(45-A)=0

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