Question

please ANSWER question no 19 and 20. if your answer will be correct I will mark you as brainliest.​

Answer 1

Step-by-step explanation:

For q 19 ans will be A i.e.1

For q 20 ans Will be B i.e.0 bcz the series contains cos 90 which is 0

now pls mark brainliest

Answer 2

Step-by-step explanation:

here's your answer mate