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1.
The measure of the angles of a triangle are in the ratio 2 : 7 : 11. Measures of angles are ?
2.
The simplified value of (secA - cosA)2 + (cosecA - sinA)2 - (cotA - tanA)2
3.
The angles of a triangle are (x + 5)
4.
The value of cos1° cos2° cos3° ............. cos177° cos178° cos179° is?
5.
2cosec223° cot267° - sin223° - sin267° - cot267° is equal to?
6.
Let A, B, C, D be the angles of a quadrilateral. If they are concyclic, then the value of cos A + cos B + cos C + cos D is ?
7.
If tanA = n tanB and sinA = m sinB, then the value of cos2A = ?
8.
The value of tan 4°.tan 43°.tan 47°.tan 86° is?
9.
The value of tan 1°.tan 2°.tan 3° ............. tan 89° is?
10.
The value of cot 10°.cot 20°.cot 60°.cot 70°.cot 80° is?