candy30ha candy30ha

17-08-2016
Mathematics

contestada

find the exact value of the expression cos (-105)

Respuesta :

princegn princegn

17-08-2016

cos(-105) = cos105 = cos(90+15) = cos90cos15 - sin90sin15 = 0.cos15 - 1.sin5 = 0 - sin15 = -sin15

Answer Link

Slindelo Slindelo

17-08-2016

cos(-©) negative angle is cos(+©) angle cos(-105) =cos(105) 105 =180-75 cos(180-75)= - cos(75) - cos(75)= - 0.26

Answer Link

Otras preguntas

Rhea is solving a math puzzle. To find the solution of the puzzle, she must find the product of two numbers. The first number is the sum of 23 and x, and the se

Rewrite the sentences to make them more interesting using different sentence forms (simple, compound, complex, compound-complex.) I don’t understand why peopl

When writing a paper, having a strong thesis statement is crucial. If the thesis statement is weak, the writer will have a hard time providing support for an ar

Muscle contraction is an energy-dependent process. True or False

How do u know that the sum of -2(3/4) and 5/9 is rational?

I need help on this question

What rule describes the translation. Thanks.

It costs $6 per pound for peanuts at Blessed Food Market. Which of the following represents the range of the function in terms of cost per pound? a.$6 b.Amount

What are two equivalent expressions for 4x + 3y - 5?

10 Points! What does X = “1/3 x + 8 = 2/3x + 6