Sinsquare 30/2 cos square 30/2
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Answer:
We have,
3cos
2
30
∘
+sec
2
30
∘
+2cos0
∘
+3sin90
∘
−tan
2
60
∘
=3(cos30
∘
)
2
+(sec30
∘
)
2
+2cos0
∘
+3sin90
∘
−(tan60
∘
)
2
=3×(
2
3
)
2
+(
3
2
)
2
+2×1+3×1−(
3
)
2
=
4
9
+
3
4
+2+3−3=
12
67
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