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" 7."(5x)^(3cos2x)quad " [NCERT] "...

" 7."(5x)^(3cos2x)quad " [NCERT] "

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((sin 7x + sin 5x ) +(sin 9x + sin 3x))/( (cos 7x + cos 5x ) + (cos 9x + cos 3x ))= tan 6x

((sin 7x + sin 5x ) +(sin 9x + sin 3x))/( (cos 7x + cos 5x ) + (cos 9x + cos 3x ))= tan 6x

((sin 7x + sin 5x ) +(sin 9x + sin 3x))/( (cos 7x + cos 5x ) + (cos 9x + cos 3x ))= tan 6x

((sin 7x + sin 5x ) +(sin 9x + sin 3x))/( (cos 7x + cos 5x ) + (cos 9x + cos 3x ))= tan 6x

(( sin 7x + sin 5x)+(sin 9x + sin 3x))/((cos 7x + cos 5x)+(cos 9x+ cos 3x)) =tan 6x

prove that ((sin 7x + sin 5x )+( sin 9x + sin 3x ))/( ( cos 7x + cos 5x )+ ( cos 9x + cos 3x )) = tan 6x

Prove that ((sin 7 x+sin 5 x)+(sin 9 x+sin 3 x))/((cos 7 x+cos 5 x)+(cos 9 x+cos 3 x))=tan 6 x

(sin 7x - sin 5x)/(cos 7x + cos 5x) = tan x

The value of int (cos 7x-cos 8x)/(1+2 cos 5x)dx , is