Question
The Value of (sin38˚)/(cos52˚)+ (cos12˚)/(sin78˚)-
4cos²60˚ isSolution
(sin38˚)/(cos52˚)+ (cos12˚)/(sin78˚)- 4cos²60˚ (sin(90-52)˚)/(cos52˚)+ (cos(90-78)˚)/(sin78˚)- 4cos²60˚ (cos52˚)/(cos52˚)+ (sin78˚)/(sin78˚)- 4cos²60˚ ⇒1 + 1 - 4×(1/2)² ⇒1
A seller sells an item for Rs. 225.50 and incurs a loss of 18%. At what price should the item be sold in order to achieve a profi...
Quantity I: The radius of a cone is twice the radius of a sphere, and the total surface area of the cone is 704 cm². The height of the cone is equal to...
A company purchased a machine for Rs. 50,000. The machine depreciates at a rate of 15% per year for two years. After three years, the company sold the m...
The median of the following distribution is:
A shopkeeper mixes two types of rice, costing $30 per kg and $50 per kg, in the ratio 3:2. He sells the mixture at $45 per kg. What is his percentage pr...
Find minimum of x + 9/x for x>0.
Find the value of 25 mod 6
A person 'P' invested Rs. 5,600 at a simple interest rate of 25% per annum for a specific duration, resulting in a total amount o...
P and Q invested certain amount of money in two SIP's A and B. SIP A offers simple interest at rate of 12.5% for 4 years and SIP B offers compound inter...
Relevant for Exams:
