Question

simplify sin 2 theta over cos 2 theta - 1 ​

Answer 1

Answer:

The double angles sin(2theta) and cos(2theta) can be rewritten as sin(theta+theta) and cos(theta+theta). ... Sine of 2 theta equals 2 sine theta cosine theta.

Answer 2

Step-by-step explanation:

Given Simplify sin 2 theta over cos 2 theta - 1

• Sin 2theta / cos2theta – 1
• So sin 2theta = 2 sin theta cos theta
• Now cos 2 theta = cos^2 theta – sin^2 theta--------1
• cos^2 theta = 1 – sin^2 theta
• Substituting this in equation 1 we get
• Cos 2 theta = 1 – sin^2 theta – sin^2 theta
• cos 2 theta = 1 – 2 sin^2 theta
• So we have the question
•      Sin 2 theta / cos 2 theta – 1
•        2 sin theta cos theta / 1 – 2sin^2 theta – 1
•        2 sin theta cos theta / - 2sin^2 theta
•            After cancelling sin theta we get  = cos theta / - sin theta
•             = - cot theta

Reference link will be

https://brainly.in/question/14071263

https://brainly.in/question/7806265