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


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


     

Grade:11

1 Answers

jitender lakhanpal
62 Points
11 years ago

we will group sin (a-b+c) and sin (a+b-c) together

and sin(a+b+c) and  sin(-a+b+c)   applying sin a+  sin b formula

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