anthonyyazzie349 anthonyyazzie349

04-04-2022
Mathematics

contestada

ASAP Please i need this done in the next 20 minutes

cos^2B-sin^2B=3cosB+1

Respuesta :

drakepuig drakepuig

04-04-2022

the answer is "Using the trigonometric identity

sin²x + cos²x = 1 , then sin²x = 1 - cos²x

Consider the left side

sin²a - sin²b

= (1 - cos²a) - (1 - cos²b)

= 1 - cos²a - 1 + cos²b

= cos²b - cos²a

= right side , thus verified"

Answer Link

Otras preguntas

A scientist is measuring the pressure that is exerted by each of the following gases in the atmosphere: carbon dioxide, oxygen, and nitrogen. Which term most li

Que transportan las arterias? (Específicamente) Aiiiiudaa

Which sentence in this excerpt from Leo Tolstoy’s The Death of Ivan Ilyich shows the human tendency to contemplate one’s past life? "But if that is so," he said

in Shakespeare's play "Romeo and Juliet" Romeo uses multiple contrats and oxymoron when describing love and its Effects. provide at least three examples then ex

what steps do owls take to hunt

Hypothesize what would occur if a wetland were drained for human development. Who and what would be impacted by this change

Write and solve an equation to find the number. The sum of -5 and a number is -15. a. -5 + n = -15; -10 c. n + 5 = -15; -20 b. 5 - n = -15; 20 d. 5n = -15; -3

What is the function of channel proteins in the cell membrane?

Is my answer correct ? I put 4 as my answer btw .

An urn contains 4 black balls and 6 white balls. What is the probability of getting 1 black ball and 1 white ball on two consecutive draws from the urn?