Solution
Solution
Solution steps
Refine to a decimal form
Popular Examples
cos(2/3)pisec^2(1.2)-4cos^2(pi/2)-sin^2(pi/2)cos^2((7pi)/8)-sin^2((7pi)/8)sin((11pi)/(20))cos(pi/5)+cos((11pi)/(20))sin(pi/5)
Frequently Asked Questions (FAQ)
What is the value of cos(0.4pi*10.66) ?
The value of cos(0.4pi*10.66) is 0.67533…