Question

The slope of tangent to (cos X 2 points
)^y = (Sin Y)^X is
(Y Tan X - Log Sin Y)/( Log Cos X +
X Cot Y)
o O
(Y Tan X - Log Sin Y)/( Log Cos X - X
Cot Y)
(Y Tan X+ Log Sin Y)/(Log Cos X +
X Cot Y)
O
(Y Tan X + Log Sin Y)/( Log Cos X -
X Cot Y)​

Answer 1

Explanation:

Meena, Reena and Anjum can complete a pieCe of embroidery by themselves in 8 hours, 10 hours and 12 hours respectively. They all start the work together but after 3 hours Meena and Anjum leave. How long will Reena take to complete the remaining work?