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can you help me in integrating 1/sqrt(1+2cos2x)

+3 votes

asked Sep 7, 2018 in Mathematics by kratos

maths
vectors
class-12
taylor series
functions
graph
calculus
matrix method

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1 Answer

+1 vote

answered Apr 28, 2020 by kratos

Best answer

∫1÷(1+cos2x)2dx

∫1÷(sin2x+cos2x+cos2x-sin2x)2dx

∫1÷(2cos2x)2dx

(1÷4)∫sec4x dx

(1÷4)∫sec2x(1+tan2x) dx

(1÷4)∫sec2x+sec2xtan2x dx

1/4[tanx+(tan3x÷3)]+C..Answer

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