Solving Trigonometry Problems: Basic, Advanced & Examples

High School
Geometry
Trigonometry

$= \sqrt{3 i} + π + c k, v = 4 i - j - k$ , where is a constant.
(a) Compute $‖ u ‖, ‖ v ‖$ , and $u \times v$ for the given vector in R3.
(b) Verify the Cauchy-Schwarz inequality for the given pair of vector.

Yulia 2021-01-31

Given a triangles. One angle is $42^{\circ}$ . Find the other angles if they're equal.

ediculeN 2021-01-31

Two right triangles are similar. The legs of the smaller triangle have lengths of 3 and 4. The scale factor is 1:3. Find the length of the hypotenuse of the larger triangle.

zi2lalZ 2021-01-31

The triominoes shown are pieces from a game. Classify the shape of a triomino by its sides and angles. What is the measure of the lagest angle?
How many sides are congruent?

Tahmid Knox 2021-01-30

$a + b + c = 180^{\circ}$ prove that $\cos a + \cos b + \cos c$

permaneceerc 2021-01-28

Verify the identity $\frac{\cos x}{1} - \sin x - \tan x = \frac{1}{\cos x}$

hexacordoK 2021-01-28

Prove $\frac{(\csc x - \cot x) (\csc x + \cot x)}{\sec x} = \cos x$

Nannie Mack 2021-01-27

If $8 R^{2} = a^{2} + b^{2} + c^{2}$ ,prove that the triangle is right angle triangle. Here a,b and c are the lengths of side of triangle and R is circum radius.

Cem Hayes 2021-01-27

Prove that
$(\tan x) (\sin 2 x) = 2 - 2 \cos^{2}$

Lipossig 2021-01-27

Find the exact value of the trigonometric function $\frac{\cos (9 π)}{4}$ .

arenceabigns 2021-01-25

In $△ P Q R$ , identify the hypotenuse, adjacent leg, and opposite leg for $∠ R$ .

sibuzwaW 2021-01-25

if $\cos 45 = \frac{1}{\sqrt{2}}$ , find $\cos 315, \sin 270, \sin 210, \tan 210$

Lipossig 2021-01-24

Let $x = a \sin θ i n \sqrt{a^{2} - x^{2}}$ . Then find $\cos θ \tan θ$

Lewis Harvey 2021-01-23

equilaterat triangle has sides of 20 to nearest tenth what is altitude of triangle

Carol Gates 2021-01-23

How are the interior and exterior angles of a triangle related?

Dottie Parra 2021-01-23

What is the value of x? Enter your answer in the box. x=

banganX 2021-01-19

Verify this triganomic identity you can only use 1 side to solve $\frac{\cos x - \tan x}{\sin x + \cos x} = \cos x - \sec x$

DofotheroU 2021-01-19

Find an equation of the tangent line to the curve at the given point.
$y = \sin (\sin x), (2 π, 0)$

BolkowN 2021-01-19

Interval $[0, 2 π)$
$2 c o s^{2} x - c o s x = 0$ ?

Tahmid Knox 2021-01-17

Solve $\frac{(1 - \sin^{2} x)}{(c s c^{2} x - 1)}$

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Trigonometry

Trigonometry Problems - Basics, Advanced & Examples