In the following question, select the odd letter/letters from the given alternatives.
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If cosx.cosy + sinx.siny = -1 then cosx + cosy is
Simplify : 132 - 142 + 172 - 250 = ?
What is the simplified value of (sin A – cosec A)(sec A – cos A) (tan A + cot A)?
If 2x+13x = 5, the value of 5x6x2+20x+1 is
The reciprocal of the sum of the reciprocals of 3/8 and 8/11 is:
Two mixtures have milk and water in the ratio 1 : 4 and 3 : 2 respectively. In what ratio two types of mixtures have to be mixed to get a new mixture having ratio of milk and water as 1 : 1?
The radius of two cylinders are in the ratio of 3:2 and their heights are in the ratio 3:7. The ratio of their volumes is :