Asked by Abhiram s nair
tanA+4cotA=4 find the value of tanA*tanA+cotA*cotA
Answers
Answered by
Steve
tanA + 4/tanA = 4
(tan^2A+4)/tanA = 4
tan^2A - 4tanA + 4 = 0
(tanA-2)^2 = 0
tanA = 2
...
(tan^2A+4)/tanA = 4
tan^2A - 4tanA + 4 = 0
(tanA-2)^2 = 0
tanA = 2
...
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