Math, asked by sanja128ozm0np, 1 year ago

sin3x+sin2x=cosx/2 english

Answers

Answered by sriram77

hey in the lhs you will apply sinA+sinB
which is equal to 2sin(A+B)/2cos(A-B)/2
after applying the formula
you will get
2sin(5x/2)cos(x/2)=cosx/2
after this you will be left with
2sin(5x/2)=0
sin(5x/2)=0
after this apply the general solution formula

sriram77: welcome

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