tan°+cot°=5 ,then tan^2°+cot^2°=
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tan + cot = 5
square both the sides.
the result comes tan square + cot square + 2× tan×cot= 25
now we see that
tan × 1/ tan = 1
as cot= 1/tan
now
tan square+cot square+ 2×1=25
tan square + cot square= 25-2
= 23
square both the sides.
the result comes tan square + cot square + 2× tan×cot= 25
now we see that
tan × 1/ tan = 1
as cot= 1/tan
now
tan square+cot square+ 2×1=25
tan square + cot square= 25-2
= 23
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