Solution

prove

Solution

Solution steps
Use the basic trigonometric identity:

Popular Examples

prove 1-2cos^2(4)=2sin^2(4)-1prove sin(8a)=4sin(2a)cos(2a)cos(4a)prove csc^2(x)(tan(x))-(tan(x))=cot(x)prove (sin(3a))/(sin(a))=2cos(2a)+1prove sin(2x)+cos(2x)=1+2sin(x)cos(x)

Frequently Asked Questions (FAQ)

  • Is cot(A)=(cos(A))/(sin(A)) ?

    The answer to whether cot(A)=(cos(A))/(sin(A)) is True