cos2
Double Angle cos(2theta)
intermediatecos(2theta) = cos^2-sin^2
Formula
Double angle
Related Calculators
You might also find these useful
∑
All Math → 649+ Calculators
Browse 600+ math calculators — stats, calculus, algebra, geometry, number theory, and more.
1/2
Fraction Calculator
Add, subtract, multiply, and simplify fractions.
∫
Calculus Calculator
Numerical integration and differentiation.
⭕
Circumference
Find circumference, area, diameter, and radius of a circle.
√
Exponent & Root
Calculate exponents, square roots, and cube roots.
🔷
Geometry Calculator
Area, perimeter, surface area, and volume for shapes.