Question

plz answer this question it's urgent​

Answer 1

Both of your questions are solved properly.

Answer 2

Step-by-step explanation:

first consider sec0=a and tan0=b

(a+b) ^2-(a^2-b^2)

(a+b) ^2+(a^2-b^2)

at last you get

b^2+ab

a^2+ab

then split into sin and cos to get answer

and the second

can cross multiplied to get answer 0