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sin5x + sinx =? give me the answer fast. iasked this question with ur exper priyanka but she didnot give me the answer may be she dont know maths..

sin5x + sinx =?
give me the answer fast.
iasked this question with ur exper priyanka but she didnot give me the answer may be she dont know maths..
 

Grade:11

1 Answers

Mohd Mujtaba
131 Points
5 years ago
Sin5x+sinx=2sin (5x+x)/2.cos (5x-x)/2=2sin3x.cos2x. It is obtained by formula sinx+siny=2sin (x+y)/2.cos(x-y)/2 hope you understand thank☺☺☺☺

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