evaluate: tan5 tan25 tan30 tan65 tan85
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Answered by
5
tan5*tan25*tan30*tan(90-25)8tan(90-5)
on simplyfyng we have tan 30 left
ans is 1/√3
on simplyfyng we have tan 30 left
ans is 1/√3
Answered by
3
5 + 85 = 90
25 + 65 = 90
tan(5) tan(25) tan(30) tan(65) tan(85)
= tan(5)tan(85) × tan(25)tan(65) × tan(30)
= 1 × 1 × tan(30)
= tan(30)
= 1/√3
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