SOLUTION: Use trigonometrical identities to expand and simplify if possible, the following: 1) cos (270 degrees - theta) 2) sin (270 degrees - theta) 3) cos (270 degrees + theta)

SOLUTION: Use trigonometrical identities to expand and simplify if possible, the following: 1) cos (270 degrees - theta) 2) sin (270 degrees - theta) 3) cos (270 degrees + theta)

Algebra.Com

Question 666132: Use trigonometrical identities to expand and simplify if possible, the following:
1) cos (270 degrees - theta)
2) sin (270 degrees - theta)
3) cos (270 degrees + theta)
Answer by swincher4391(1107) (Show Source): You can put this solution on YOUR website!
Remember
and
Let
1)
2)
3)

RELATED QUESTIONS
Use the trigonometric identities to expand and simplify if possible. For... (answered by MathLover1)

use trigonometric identities to expand and simplify if possible a) sin(A+270) b)... (answered by Alan3354)

Use the trigonometric identities to expand and simplify if possible a) sin (A+90)... (answered by MathLover1)

expand and simplify cos(270... (answered by stanbon)

I have three questions that I need extreme help on. 1. Find sec thata if sin theta=-4/5 (answered by midwood_trail,solver91311)

Use the given information to determine the exact trigonometric value. If cos(theta)=4/5... (answered by stanbon)

Use the given information to determine the exact trigonometric value. If csc(theta)=... (answered by stanbon)

Prove the identity: cos(270 degrees + theta) = sin... (answered by solver91311)

Use fundamental identities to simplify the expression.... (answered by Boreal)