Question

4. Find the value of sin(45° + a) - cos(45° - a).​

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

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

Solution:

We know that,

sin(90 - θ) = cosθ

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