Answer:
-4.8
Step-by-step explanation:
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➷ A variable is an unknown number that is represented by a letter, for example, x.
It is usually found in an algebraic expression.
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➶ Hope This Helps You!
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TROLLER
Answer:
A) X=pi/2 or X=-pi/2
B) X=pi/6 or X=-pi/6
C) X=pi/4 , 3pi/4, 5pi/4 and 7pi/4
D) X= 1-cos^2(x/2)
E) X= pi/3 +2pi N, 5pi/3+2pi N
Step-by-step explanation:
Don't even bother asking. :)