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Vineeta Chacko

Asked: 2 years ago2022-11-08T06:57:11+05:30 2022-11-08T06:57:11+05:30In: Trigonometry

If sinA + sin²A = 1, then the value of the expression (cos²A + cos⁴A) is
(a) 1 (b) 0 (c) 7 (d) 13

If sinA + sin²A = 1, then the value of the expression (cos²A + cos⁴A) is

(a) 1 (b) 0 (c) 7 (d) 13

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If sinA + sin2A = 1, then the value of the expression (cos2A + cos4A) is (a) 1 (b) 0 (c) 7 (d) 13