Question
For a positive integer n, 25n –
52n is divisible by:Solution
The correct answer is C
4m = Sec A, 4/m = Tan A, find the value of 4( m2Â - 1/m2)
A parallelogram has diagonals of lengths 24 cm and 18 cm. The angle between the diagonals is 60°. Find the area of the parallelogram.
A, B and C started a online education website by investing Rs.30,000, Rs.45,000 and Rs.60,000 respectively. Find the share of A’s, out of an annual pr...
Quantity I: The marked price of a radio is 25% higher than its cost price, and the shopkeeper offers a 15% discount on the marked price. The cost price...
Given a mixture of 234 liters consists of water and milk in the ratio of 21:5. If 1/2 of this mixture is removed and replaced wit...
A solid sphere is perfectly inscribed inside a cube, and a right circular cylinder is placed inside the cube such that it touches all the faces of the c...
A retailer buys two items at the same cost price. He sells one at a 25% profit and the other at a 20% loss. If the overall profit is rupees 15, find the...
'P' sold an item at a profit of 40%. If the cost price of the item had been Rs. 150 less and its selling price had been Rs. 30 mo...
Prove the identity: tan² θ + 1 = sec² θ
Let a line pass through the origin and make equal angles with the coordinate axes. Then the direction cosines of the line are:
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