If sinA + sin^2A = 1, then the value of the expression cos^2A + cos^4A is__

1. If sinA + sin^2A = 1, then the value of the expression cos^2A + cos^4A is__

[Officer (Cash)-2018 [MCQ] : 2018]

1. 1

2. ½

3. 2

4. 3

Answer

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