3 cos2 30°+ tan2 60°
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Answer:
Given 2sin
2
30
∘
−3cos
2
45
∘
+tan
2
60
∘
=2(
2
1
)
2
−3(
2
1
)
2
+(
3
)
2
[∵cos45
∘
=
2
1
,sin30
∘
=
2
1
,tan60
∘
=
3
]
=
4
2
−
2
3
+3
=
2
1
−
2
3
+
2
3×2
=
2
1
−
2
3
+
2
6
=
2
4
=2
Hence, 2sin
2
30
∘
−3cos
2
45
∘
+tan
2
60
∘
=2
Step-by-step explanation:
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