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∫ (1+cos4x ) / (cot x – tan x ) dx , plz answer asap, thank you

∫ (1+cos4x ) / (cot x – tan x ) dx , plz answer asap, thank you

Grade:12

1 Answers

Arun
25763 Points
3 years ago
On Solving the equation we get , {cos4x+1}/{cotx - tanx} = (2cos22x)(sinx.cosx)/(cos2x - sin2x) = cos2x.sin2x = sin4x/2
 
On Integrating we get , -cos4x/8 + C

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