Solution

Solution

+1
Solution steps
Use the following trivial identity:

Popular Examples

prove (cos(2x))/((cos(x)+sin(x)))=cos(x)-sin(x)prove tan(-(3pi)/4)cos(-pi/6)sec(x)=2,0<= x<= 2pisin(x)=-(sqrt(2))/2

Frequently Asked Questions (FAQ)

  • What is the value of cot(30) ?

    The value of cot(30) is square root of 3