idisaguilar74 idisaguilar74

04-04-2020
Mathematics

contestada

which sum or difference identity would you use to vertify that cos (180⁰- thata)=-cos thata

Respuesta :

MathPhys MathPhys

04-04-2020

Step-by-step explanation:

Use the angle difference formula for cosine.

cos(α − β) = cos α cos β + sin α sin β

cos(180° − θ) = cos 180° cos θ + sin 180° sin θ

cos(180° − θ) = (-1) cos θ + (0) sin θ

cos(180° − θ) = -cos θ

Answer Link

Otras preguntas

What are the characteristics of mass culture?

What are the operation sines that make this statement correct? 3_5_7_18_3=14

which of the following expressions does not equal: the sixth root of 81x^4y^8 a. (3xy^2)^2/3 b. (3x)^2/3y^4/3 c. (3x^2y^4)^1/3 d. cube root of 9x^2y^4

You shoot an arrow set a target. The parabolic path of the arrow passes through the points shown in table. X. Y 30. 6 60. 7 100. 4 A. Find a quadratic function

If 52 x equals 7800 y what does 1 x equal? What is the maths equation?

lara has a tin of peanuts cashews and pecans she will pick a second nut without looking. how many outcomes are there for her two picks?

can u tell me how to solve this promblem 4/7 plus 3/7

lara has a tin of peanuts cashews and pecans she will pick a second nut without looking. how many outcomes are there for her two picks?

which of the following expressions does not equal: the sixth root of 81x^4y^8 a. (3xy^2)^2/3 b. (3x)^2/3y^4/3 c. (3x^2y^4)^1/3 d. cube root of 9x^2y^4

Six popular brands of tea are to be used in a blind taste study for consumer recognition. If three distinct brands are chosen from the six, and if the consumer