can you plzzz solve the new questions
the following answers are all from old book
and there are many questions that are added on the new book of 2020
thank you
Question
Without using trigonometric table values evaluate
Sec^ 54-cot^2 36/cosec^2 57-tan^2 33 +2sin^2 38 sec^2 52 -sin^ 45
The ratio of income of two personas 9:7 and the ratio of their expenditure is 4:3 if each of them manage to save 2000 Rs per month. Find there monthly income ?
