Question

Give me answer for Q.1 (iii) and (iv) with reasonable answers....

Answer 1

1)1
2)-1
3)π÷2
4)0



..............

Answer 2

coefficient → an number or constant before multiplying the variable in an algebraic expression.

$1.i)1 \\ ii) - 1 \\ iii) \frac{\pi}{2} \\ iv)0 \: \\ (since \: there \: is \: no \: coefficient \: of \: {x}^{2} we \: write \: it \: 0 \: as \: its \: coefficient)$