leahms13 leahms13

24-04-2020
Mathematics

contestada

The equation sec2x- 1 = tan2x is an identity
O
O
A. True
B. False

Respuesta :

PollyP52 PollyP52

24-04-2020

Answer:

A. True.

Step-by-step explanation:

I am assuming that it's

sec^2 x - 1 = tan^2 x

Now sec^2 x - 1 = 1 / cos^2 x - 1

= (1 - cos^2 x) / cos^2 x

But 1 - cos^2 x = sin^2 x

so sec^2 x - 1 = sin^2 x / cos ^2 x

= tan^2 x.

Answer Link

Otras preguntas

what is 15/21 simplified?

What musical instrument's name means “jumping flea” in English? Kazoo Balalaika Ukulele Theremin

what is the unit value the 3 in 432 ?

What is .0449 rounded to the nearest hundredth?

What is displacement?

Draw and label a quadrilateral that could not be classified as a parallelogram. Explain why it can't be classified as a parallelogram.

Grace and her father spent 4 1/2 hours over the weekend restoring their fishing boat. This time makes up 6% of the time needed to fully restore the boat. How mu

what is 21/45 simplified?

Which occurs at a convergent boundary where one plate moves under another plate? A. canyons B. faults C. volcanoes D. ridges

Ann is opening a new savings account with an initial deposit of $250. Which combination of a deposit and a withdrawal will result in a zero balance in Ann's acc