Math, asked by jayantiprusty, 9 months ago

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

Answers

Answered by adityasinghask

5

Answer:

√2× cosA

Step-by-step explanation:

sin(a+b) + sin(a-b)

= sina.cosb +cosa.sinb + sina.cosb -cosa.sinb

=2sina.cosb

= 2sin45cosA

= √2× cosA

Answered by harry366784

0

Step-by-step explanation:

SinA value is Opposite / hypotenuse

here opposite value of 45° is a

and hypotenuse value is √2a

Then, Opposite / hypotenuse = a/√2a

So, Value of Sin 45 is 1/√2

Answer: 1/√2

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