यदि sinA+sin2A=1 है, तो cos4A+cos2A का मान क्या होगा।
If sinA+sin2A=1, then what will be the value of cos4A+cos2A.

  • 1

    1

  • 2

    4

  • 3

    2

  • 4

    1/2

Answer:- 1

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