N6ydiaschicalopergu N6ydiaschicalopergu

15-06-2016
Mathematics

contestada

verify the identity of

sin (x+pi/2)=cos x

Respuesta :

nobillionaireNobley nobillionaireNobley

15-06-2016

Sin(A+B) = sinAcosB + sinBcosA
sin (x + pi/2) = sin x cos pi/2 + sin pi/2 cos x
= sin x (0) + 1 (cos x)
= cos x
(cos pi/2 = 0 and sin pi/2 = 1)

Answer Link

Otras preguntas

A hair care company makes three batches of scented shampoo using the recipe shown. Each batch contains a different total amount of shampoo. Drag numbers to sh

You're attempting to teach Brian, a preschooler, how to arrange a group of five blocks from largest to smallest. First, you explain what you want him to do; th

“The cats fur was as smooth as silk” this is an example of which type of figurative language?

Victoria drove 211⁄2 miles in 2⁄3 of an hour. What was her speed?

suppose you are enjoying a conversation with a friend in your car, when a vehicle pulls up next to you with the audio system turned up to maximum, drowning out

What is the name of the muscle underlying the eyelid skin

The most effective way to increase the body’s metabolism when trying to lose weight is to ________.

karl made $365 last month doing odd jobs after school. If 75% of the money he made was from doing yardwork, about how much did karl make doing yardwork

During the colonial era, most immigrants to the United States came from out all of these which one Eastern Europe. Western Europe. Northern Asia. Southern Asia

thank you!!!!!!!!!!!!!!!!!!!!!