Question

Express the following number in scientific notation 7,86,40,000​

Answer 1

here,

in scientific notation

decimal point is placed after 1 digit and then expressed in exponential form

so we have the answer

7.864×10^7

Answer 2

$\mathcal\pink{ANSWER}$

Let's convert your number to scientific notation.

78640000.

7.864*10⁷