The value of the expression (\({cos^6\theta+sin^6\theta-1}\)) (\({tan^2\theta+cot^2\theta+2}\)) is :
The value of 80° in radian is
A dishonest dealer professes to sell his goods at the cost price but uses a false weight of 900 g instead of 1 kg. His gain percent is:
Sachin alone can complete a piece of work for Rs. 8,500 in \(8\frac{1}{2}\) days. But with the help of Vishnu, the work is completed in 6 days. The share to be paid to Vishnu is:
A grocery dealer cheats to the extent of 10% while buying as well as selling by using false weight. What is his actual gain % in whole process?