What is the value of $\frac{cos^{2}A}{(1 + sinA)}$?
1). 1 + sinA
2). 1 - sinA
3). 1 - secA
4). 1 + secA
$\frac{1}{\left(tanA+cotA\right)}$ is equal to
1). (cosecA + sinA)(secA - cosA)
2). √[(cosecA - sinA)(secA - cosA)]
3). √[(cosecA + sinA)(secA - cosA)]
4). (cosecA - sinA)(secA - cosA)
If curved surface area of a cylinder is 1386 sq cm and height is 21 cm, what will be its radius? (Take π = $\frac{22}{7}$)
1). 21 cms
2). 5.25 cms
3). 10.5 cms
4). 15.75 cms
If the amount received at the end of 2nd and 3rd year at Compound Interest on a certain Principal is Rs 32448 and Rs 33745.92 respectively, what is the
rate of interest?
1). 2 percent
2). 8 percent
3). 6 percent
4). 4 percent
The perimeter of a square is 40 cm, find its area?
1). 100 sq cm
2). 25 sq cm
3). 50 sq cm
4). 160 sq cm