If 2cos2 Ɵ – 5cos Ɵ + 2 = 0,00 < Ɵ < 900 , then the value of (cosec Ɵ + cot Ɵ) is :
2cos²θ-5cosθ+2 = 0, 0°<θ<90° 2cos²θ-4cosθ-cosθ+2=0 (2cosθ-1) (cosθ-2) = 0 ∴ cosθ = ½ θ = 60° ∴ cosecθ + cotθ = cosec60° + cot60° = 2/ √3 + 1/ √3 = √3
Three boys step off together from the same spot. Their steps measure 64 cm, 80 cm and 88 cm respectively. The minimum distance each should cover so that...
The LCM of two numbers is 40 times its HCF. If the product of the numbers is 1440, find their HCF.
Four machine makes a beep after every 1, 3, 5 and2 min respectively . In 5hrs , how many times do they beep together if they have just beeped together.<...
The LCM of two numbers is 12 times their HCF. The sum of LCM and HCF is 403 and if both the number are smaller than their LCM. Find both the numbers?
The sum of two numbers is 156 and their HCF is 26. Find how many such pairs can be formed.
The sum of two numbers is 99 and their HCF is 11. Total number of such pairs of numbers is?
The LCM of two numbers is 12 times their HCF. The sum of LCM and HCF is 403 and if both the number are smaller than their LCM. Find both the numbers?
Find the least number that should be added to 90, so that the remainder when divided by 5, 6 and 9 will leave the same remainder 1.
