. If sin θ + sin² θ = 1, then cos² θ + cos4 θ = ..
(a) -1
(b) 0
(c) 1
(d) 2
. If sin θ + sin² θ = 1, then cos² θ + cos4 θ = ..
(a) -1
(b) 0
(c) 1
(d) 2
Harshit Singh , 3 Years ago
Grade 12th pass
10 grade maths> . If sin θ + sin² θ = 1, then cos² θ + co...
1 AnswersPawan Prajapati
Last Activity: 3 Years ago
Answer: c
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