prove that

( cos 17 +sin 17 )/(cos 17-sin17) = tan 62

  • 43

cos17 + sin17/cos17 - sin17

dividing by cos17 we get

1+tan17/1 - tan17

tan(45 + 17) = tan62

  • 2

 os17 + sin17/cos17 - sin17

dividing by cos17 we get

1+tan17/1 - tan17

tan(45 + 17) = tan62

  • 9
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