Question

please solve this three MCQ'S​

Answer 1

Answer:

My best answer is,

4. (d) -3

5. (a) a^2+ 2ab+b^2

6. (a) 1

(b) -1

(c) π/2

(d) No coefficient.

I hope it will help you. If it's helpful, mark it as a brainliest answer..