# Trigonometry

Is true equality?

$sin(x+13π)=sin(x)$

$sin(x+13π)=sin(x)$

**Result**Tips for related online calculators

Most natural application of trigonometry and trigonometric functions is a calculation of the triangles. Common and less common calculations of different types of triangles offers our triangle calculator. Word trigonometry comes from Greek and literally means triangle calculation.

#### You need to know the following knowledge to solve this word math problem:

## Related math problems and questions:

- Powers

Is it true for any number a,b,c,d equality:? (a-b-c-d)^{ 6}= (d+c+b-a)^{ 6} - Assignment 68484

Write the assignment in a fraction. Fill in the number in the box so that the equality applies: (Write the result as a fraction in the base form.) 3 · ___ + 1/4 = 5/8 - Primes 2

For what primes p,q,r is true: p²-(q+r)²=647 - Star equation

Write digits instead of stars so that the sum of the written digits is odd and is true equality: 42 · ∗8 = 2 ∗∗∗ - For what

For what value of x is -5x+8=-6 a true statement? Write your answer as a decimal. - Different 55491

Add the same numbers after the same letters and different numbers after the other letters so that equality applies: KRAVA + KRAVA = MLIEKO, where K is an odd digit. - Brackets 2

Add parenthesis to make true: 5-2×6-4+2=5 - Two numbers

Determine the numbers x and y, so x + y = 8 is true, and the numbers are in the ratio of 4: 5. - Trigonometry

If you know that cos(γ) = sin (806°), what is the angle γ? - Expression

If it is true that (l + 15 w)/(w) = 6, then the value of the expression (13 l)/(12 w) is: - Digits A, B, C

For the various digits A, B, and C is true: the square root of the BC is equal to the A, and the sum B+C is equal to A. Calculate A + 2B + 3C. (BC is a two-digit number, not a product). - Moivre 2

Find the cube roots of 125(cos 288° + i sin 288°). - Energy saving

They released three different independent inventions saving 15%, 17%, and 16% energy. Some considered that while the use of these inventions, the total savings will be 15% + 17% + 16% = 48%. Is this true? How much will the percent of energy save all three - An equivalent

An equilateral triangle has the same perimeter as a rectangle whose sides are b and h (b > h). Considering that the area of the triangle is three times the area of the rectangle. What is the value of b/h? - Annie

Annie had a few cents in her wallet. She bought three buns for 9 cents. Now she has 53 cents in the wallet. How many cents previously Annie had in the wallet? - Cotangent

If the angle α is acute, and cotan α = 1/3. Determine the value of sin α, cos α, and tan α. - Solve 3

Solve a quadratic equation: (6n+1) (4n-1) = 3n²