Question
If X = 10°, find the value of: cos²(3X) +
sin²(6X) - tan²(3X)Solution
= cos²(30°) + sin²(60°) - tan²(30°)
= (√3/2)² + (√3/2)² - (1/√3)²
= 3/4 + 3/4 - 1/3 = 7/6
A 150-litre solution of juice and water contains the two in the ratio 3:2, respectively. If 30% of the solution is replaced with water, what will be the...
Select the option in which the numbers are related in the same way as are the numbers of the following sets.
(63, 7, 16)
(68, 4, 21)
The Internet utilizes the TCP/IP protocol and is accessed using a computer modem or network that is connected through an ISP . What is t...
- If a + b = 8 and ab = 5, then what is the value of a³ + b³?
Which device connects a computer to a telephone line for internet access?
Which box is the heaviest?
What is the name of the process to find errors in a software program?
- Which of the following numbers is not a perfect square?
M’s sister U is the wife of C. T is the son of C. If T’s mother is the only daughter of her parents, then how is T related to M?
3 बजकर 30 मिनट पर घड़ी की मिनट एवं घण्टे की सूई कितने डिग्री का...
Relevant for Exams:
