If cosθ = \( \frac{x}{\sin\theta} \), then the value of sin⁶θ + cos⁶θ = ________.
What is the value of k if \(\frac{2^{-2k}\times4^{k+3}}{4^{-k+2}}\) = 2k-2?
The given pie chart shows the sales of a company over five years. Study the chart and answer the question.
Sale = expenditure + profit
Profit % = (profit / expenditure) × 100%
If profit of the company in 2005 was 25%, then find the expenditure in 2005?