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Please help me with trigometric identities

0 votes

Solve the follow equations 0<x<360 (i couldn't get the is greater and equal to sign) 

Cotx + tanx =2secx.

asked Apr 13, 2016 in TRIGONOMETRY by anonymous

1 Answer

0 votes

Step:1

The trigonometric identity is .

Multiply each side by .

Express with .

Simplify the identity.

Multiply each side by and simlify.

Fundamental identities: .

General solution :

If , then , where is an integer.

.

Solution for the range .

.

Solution :

The solution is .

answered Apr 13, 2016 by lilly Expert
edited Apr 13, 2016 by lilly

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