Selennella0 Selennella0

20-07-2016
Mathematics

contestada

Write the expression as either the sine, cosine, or tangent of a single angle.

sin 57° cos 13° - cos 57° sin 13°

Respuesta :

meerkat18 meerkat18

20-07-2016

There exists a trigonometric identity which states that,
sin (A - B) = sin A cos B - cos A sin B
This is very similar to the given expression with A equal to 57° and B equal to 13°. The simplified form of the angle is,
sin (57° - 13°) = sin 44°

Answer Link

Otras preguntas

The Mulraney's home has 2,550 square feet of living space. A contractor is building an addition to their home that will increase the square footage by 8%. What

What are the different types of erosion?

When an alkaline earth metal, M, reacts with oxygen the formula of the compound produced will be a. M₂O b. MO c. M₂O₃ d. MO₂ e. M₃O₄

I lost my English book what do I do?

Write a quadratic function in standard form with zeros 9 and -4

Solve for x : 2x^2+4x-16=0

Solve the equation using the quadratic formula : x^2-10x+25=18

How do you simplify (9x^8 y^3)^1/2

Factor the expression.2x2 + x - 15

what is he first step in solving the equation (*x*-6)2=9