cos 3x = 1/2, cos π/3 = ½ so 3x = 2nπ ± π/3 Thus, x = 2nπ/3 ± π/9 Correct option: a
What is the area of a rhombus?
I. Length of one diagonal of the Rhombus is 50 cm.
II. Length of other diagona...
How much time will Bus A take to cross Bus B (from the moment they meet) running in opposite directions (towards each other)?
Statement I: The r...
What is the distance between two points A and B (in km)? Which of the following statement (s) is sufficient to give the answer:
I. Travelling at ...
What was the profit earned by selling an article?
Statement I: The article was sold for Rs 850 after getting a discount of 15% on the labelled p...
What is the speed of the stream?
I. The boat covers a distance of 54 km in 3 hours while running downstream.
II. The boat covers the same ...
Train A crosses another train B running in the opposite direction in 180 seconds. What is the speed of the train A?
Statement I - Speed o...
What will be the percentage increase in the volume?
Statement I : A cube of ice is dip into 20 litre water
Statement II : If radius of...
The ratio between the present ages of the Manan and Naman is 1 : 3. Find the present age of the Naman.
I: Difference between the present ages of ...
A shopkeeper sells a homogeneous mixture of A and B at a rate of Rs 320 per kg. Find the profit percentage of the shopkeeper.
Statement I : he b...
Amit, Bhanu, and Chintu started a business where Bhanu invested Rs. 1,500 more and Chintu invested Rs. 200 less than Amit. The ta...
