CBSE Class 10 Answered
If cos theta = 2 tan theta, what is the numerical value of cos square theta?
a)-2-2sqrt2
b)-2+2sqrt2
c)-1-sqrt3
d)none. please explain
Asked by sumandeesinghrana | 14 Oct, 2010, 08:06: PM
Expert Answer
Answered by | 15 Oct, 2010, 10:50: AM
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