Integrals of Trigonometric functions
If you have nth power of trigonometric functions they should be converted into multiple angle trigonometric function and proceed with integration.
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Allied angles formula in trigonometry
Allied angles: 90+/- A, 180 +/- A, 270 +/- A, 360 +/- A Slides
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Integral of sin x . sin(cos x)dx solved by Gokul
Substitute cos x by t. Differentiate and proceed with integration.
Integral problem using trigonometry and substitution method
Find out the integral of sin(ax+b) cos (ax+b) dx
Congruent vs Similar Triangles
Presented by Pranav, Yogesh, Rohit and Aswin Conditions of congruent triangles Corresponding angles are equal. Corresponding sides are equal. Conditions of similar triangles Corresponding angles are equal. Corresponding sides are proportional.