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Eamcet Mathematics
Trigonometry Properties of Triangles
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Q.
If α, β, γ are angles of a traingle, then sin
2
α +sin
2
β +sin
2
γ -2 cosαcosβcosγ is
A.
2
B.
1
C.
-1
D.
0
E.
None of the above
View Answer
Correct choice: A
Explanation:
None
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