Math, asked by chandravignesh51, 10 months ago

If tan 35º = k, then the value of
tan 145º – tan 125º ÷(1+tan 145º tan 125°)

Answers

Answered by niharikam54

10

Answer:

given tan 35 = k

tan 145 - tan 125 ÷ 1+ tan 145. tan 125

tan(180-35) - tan (90+35) ÷ 1+tan(180-35)tan(90+35)

-tan 35 +cot 35 ÷ 1 +tan 35. cot 35

-k +1/k ÷ 1+1 = 1-k^2 /2k

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