Question

what is answer std:-6​

Answer 1

i) (b−7)2

=b2+72−2(b)(7)

=b2+49−14b                 ∵[(a−b)2=a2+b2−2ab]

Answer 2

Answer:

$\frac{11}{6} \times \frac{7}{5} \\ \frac{55}{42}$