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If a = b in the equation of ellipse x²/a² + y²/b² = 1, then the curve becomes:
The derivative of y = eˣ · cos(x) is
A manufacturer sells an article to a wholesaler at a profit of 20%. The wholesaler sells it to a retailer at a profit of 25%, and the retailer sells it ...
A train that is 300 meters long takes 15 seconds to pass a tree. What is the speed of the train in kilometers per hour?
A man travels 60 km at a speed of 30 km/h and then travels 90 km at a speed of 60 km/h. What is his average speed for the entire journey?
Find the simplified value of given expression
The time taken by Boat 'X' to travel a distance of '2a' km upstream is the same as the time it takes to travel '3a' km downstream. Similarly, the time t...
If the perimeter of a square measures 92 cm, what is the area of the square?
In the given series, what will be come in place of blanks?
Series I: 13, _ P _, 89, 145, 229, 369
Series II: 287, _ Q _, 223, 194, 167, 14...
(√196 + √121) × 4 = ?/2