Question

using suitable identities solve 7.1×6.9​

Answer 1

Answer:

hey mate your answer is...

Step-by-step explanation:

7.1×6.9=48.99...................

Answer 2

$7.1 \times 6.9$

$(7 + 0.1)(7 - 0.1)$

Using the identity,

$(x + y)(x - y) = {x}^{2} - {y}^{2}$

So,

${7}^{2} - {0.1}^{2}$

$49 - 0.01$

$48.99$