मराठी

If cosA + cos2A = 1, then sin2A + sin4A= 1. - Mathematics

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प्रश्न

If cosA + cos2A = 1, then sin2A + sin4A = 1.

पर्याय

  • True

  • False

MCQ
चूक किंवा बरोबर
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उत्तर

This statement is True.

Explanation:

∵ cosA + cos2A = 1

⇒ cosA = 1 – cos2A = sin2A  ...[∵ sin2A + cos2A = 1]

⇒ cos2A = sin4A

⇒ 1 – sin2A = sin4A  ...[∵ cos2A = 1 – sin2A]

⇒ sin2A + sin4A = 1

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Introduction To Trigonometry and Its Applications - Exercise 8.2 [पृष्ठ ९३]

APPEARS IN

एनसीईआरटी एक्झांप्लर Mathematics [English] Class 10
पाठ 8 Introduction To Trigonometry and Its Applications
Exercise 8.2 | Q 5 | पृष्ठ ९३

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