Solution

prove

Solution

Solution steps
Manipulating right side
Rewrite using trig identities
Use the Pythagorean identity:
Simplify
Expand
Apply the distributive law:
Apply minus-plus rules
Multiply the numbers:
We showed that the two sides could take the same form

Popular Examples

prove sin(180-θ)=sin(θ)prove 2cot^2(x)sin^2(x)=1+2cos(x)prove cos(x)=cos^2(x/2)-sin^2(x/2)prove 2sin(z)cos(z)=sin(2z)prove (cos(3θ))/(cos(θ))=1-4sin^2(θ)

Frequently Asked Questions (FAQ)

  • Is 25cos^2(x)=25-25sin^2(x) ?

    The answer to whether 25cos^2(x)=25-25sin^2(x) is True