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AP EAMCET2015MathematicsTrigonometric Ratios & Identities

5 +2 2 5 +4 4 5 is equal to

Options

  1. A5
  2. B2 5
  3. C3 5
  4. D4 5

Correct answer

A. 5

Step-by-step solution

aligned & (a) Given, 5 +2 2 5 +4 4 5 & = 5 +2 [2 4 5 + 2 5 ] aligned We know that, array ll = 5 +2 2 5 & [from Eq. (i) ] array = 5 [from Eq. (i)]

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