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Prove that tan suquare2/11plus tansquare 3pie /11 plus tansquare 4pie /11plus tan square 5 pie /11. Is equal to 55

Prove that tan suquare2/11plus tansquare 3pie /11 plus tansquare 4pie /11plus tan square 5 pie /11. Is equal to 55

Grade:11

1 Answers

Vikas TU
14149 Points
4 years ago
Use formulae or identity,
tan2A = 2tanA/(1-tan^2A)
from here write,
tan^2A = 1  – 2tanA/tan2A
and apply by taking one by one.
the problem would be get sort out to 55.

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