tan2 30degree+tan2 45degree+tan2 60degree
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Step-by-step explanation:
tan45
∘
=1,cos30
∘
=
2
3
,sin60
∘
=
2
3
∴2tan
2
45
∘
+cos
2
30
∘
−sin
2
60
∘
=2(1)
2
+(
2
3
)
2
−(
2
3
)
2
=2(1)=2
∴2tan
2
45
∘
+cos
2
30
∘
−sin
2
60
∘
=2
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