Q. If sinA + sin2A = 1 then what is the value of cos2A + cos4A ?
A) 2
B) 1
C) 1/4
D) 1/2
✔ Correct Answer: 1
Exam Insight
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A) 2
B) 1
C) 1/4
D) 1/2
✔ Correct Answer: 1
-
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