21-11-2019
Mathematics

contestada

Verify that -tan2x = (2tanx) / (sec^2x - 2)

Respuesta :

PollyP52 PollyP52

21-11-2019

Answer:

Below.

Step-by-step explanation:

- tan 2x = -2tanx / (1 - tan^2x)

Using the identity tan^2x = sec^2x - 1 and substituting for tan^2x:

- tan 2x = -2 tanx / (1 - (sec^2x - 1))

= 2 tanx / ( - 1(sec^2x + 2))

= 2 tan x / (sec^2 x - 2)

Answer Link

Otras preguntas

which form of the energy is used to generate electrical energy in a tidal power station

what crimes are cctv and security lock designed to prevent?

What do amino acids, fatty acids, and sugars have in common A. They are used to make proteins. B. They are used to lipids. C. They are made of carbon, oxygen, a

• Briefly explain, at least, THREE social issues that could lead to environmental Injustice.

Which word is NOT a coordinating conjunction? A. But.

Make news article related to the development project in Nepal and it's benefits.

Jane wants to type a math assignment involving percentages she wants to insert the percent symbol after typing a number which key should Jane express along the

100 POINTS PLEASE HELP!!!!

HELPP PLEASEEEEEEEEEEEEEEEEEEEEEEE

Help me out pleaseeeee