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Popular >

2cos^2(48)-1

Solution

2 cos^{2} (4 8^{\circ}) - 1

Solution

- 0.10452 \dots

Solution steps

2 cos^{2} (4 8^{\circ}) - 1

Refine to a decimal form

= - 0.10452 \dots

Popular Examples

sin((3pi)/5)cos((4pi}{15})-cos((3pi)/5)sin(\frac{4pi)/(15))

sin (\frac{3 π}{5}) cos (\frac{4 π}{15}) - cos (\frac{3 π}{5}) sin (\frac{4 π}{15})

(cos(pi/6))/(sin(pi/4))

\frac{cos ( \frac{π}{6} )}{sin ( \frac{π}{4} )}

cos((2pi)/3)cos((7pi)/6)-sin((2pi)/3)sin((7pi)/6)

cos (\frac{2 π}{3}) cos (\frac{7 π}{6}) - sin (\frac{2 π}{3}) sin (\frac{7 π}{6})

6 cos (15 0^{\circ})

arctanh (0.98)

Frequently Asked Questions (FAQ)

What is the value of 2cos^2(48)-1 ?
The value of 2cos^2(48)-1 is -0.10452…