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sinX+cosX ÷ whole root (1+sin2X)dx integrate

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sinX+cosX ÷ whole root (1+sin2X)dx integrate
  • 3 answers

Taruna Dagar 8 years, 3 months ago

I have a suggestion for you when ever you find 1+sin2x them try to make its whole square

Sunil Yadav 8 years, 3 months ago

Integration will be x write 1 as sin square x+cos square x sin2X as 2sinXcosX It will be the whole square of sinX+cos X Remove the root

Naveen Sharma 8 years, 3 months ago

{tex}\int {sin x+ cos x\over \sqrt {1+sin2x}}dx{/tex}
{tex}=> \int {sin x+ cos x\over \sqrt {sin^2x+cos^2x+2sinxcosx}}dx{/tex}
{tex}=> \int {sin x+ cos x\over \sqrt {(sinx+cosx)^2}}dx{/tex}
{tex}=> \int {sin x+ cos x\over {sinx+cosx}}dx{/tex}
{tex}=> \int dx = x + C{/tex}

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