Use the following trivial identity: \(\displaystyle{\sin{{\left({60}°\right)}}}=\frac{\sqrt{{3}}}{{2}}\)

Decimal: 0.86602...

Decimal: 0.86602...

asked 2021-02-12

The question asks for the exact value of the trigonometric function at the given real number:

\(\displaystyle{\sin{{\left(\frac{{{3}\pi}}{{4}}\right)}}}\)

\(\displaystyle{\sin{{\left(\frac{{{3}\pi}}{{4}}\right)}}}\)

asked 2021-06-03

Identify the surface whose equation is given. \(p=\sin\theta\sin\phi\)

asked 2021-03-02

Use the figures to find the exact value of the trigonometric function \(\displaystyle{\tan{{2}}}\theta\).

asked 2020-11-26

Find the exact value of the trigonometric function \(\displaystyle{\sec{{\left(\frac{{-{9}\pi}}{{4}}\right)}}}\) .

asked 2021-01-27

Find the exact value of the trigonometric function \(\displaystyle\frac{{\cos{{\left({9}\pi\right)}}}}{{4}}\).

asked 2021-01-31

Use a calculator to find the value of the trigonometric function \(\displaystyle{\sin{{\left(\frac{{{3}\pi}}{{10}}\right)}}}\) to four decimal places.

asked 2021-01-04

\(\sec \theta = -3, \tan \theta > 0\). Find the exact value of the remaining trigonometric functions of

\(\theta\).

asked 2021-06-09

If \(A = 40^{\circ}, B = 60^{\circ}\), and \(a = 20\), find b.

asked 2021-02-08

Find derivative of trigonometric function
\(\displaystyle{y}=\frac{{{3}{\left({1}-{\sin{{x}}}\right)}}}{{{2}{\cos{{x}}}}}\)

asked 2021-03-06

Given the values for sin t and cos t, use reciprocal and quotient identities to find the values of the other trigonometric functions of t.

\(\displaystyle{\sin{{t}}}=\frac{{3}}{{4}}{\quad\text{and}\quad}{\cos{{t}}}=\frac{\sqrt{{7}}}{{4}}\)

\(\displaystyle{\sin{{t}}}=\frac{{3}}{{4}}{\quad\text{and}\quad}{\cos{{t}}}=\frac{\sqrt{{7}}}{{4}}\)