Find the Exact Value sin(pi/2)+cos(pi)

$\sin (\frac{π}{2}) + \cos (π)$

Simplify each term.

The exact value of $\sin (\frac{π}{2})$ is $1$ .

$1 + \cos (π)$

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the second quadrant.

$1 - \cos (0)$

The exact value of $\cos (0)$ is $1$ .

$1 - 1 \cdot 1$

Multiply $- 1$ by $1$ .

$1 - 1$

Subtract $1$ from $1$ .

$0$

Find the Exact Value sin(pi/2)+cos(pi)

Related Questions

Support LCMGCF.com by disabling your adblocker.