Find the value of [tex]$m$[/tex] if:

(i) [tex]\left(\frac{3}{8}\right)^{2m} \times \left(\frac{3}{8}\right)^6 \times \frac{3}{8} = \left(\frac{3}{8}\right)^{13}[/tex]



Answer :

Sure, let's solve the given equation step-by-step.

The equation provided is:
[tex]\[ \left(\frac{3}{8}\right)^{2m} \times \left(\frac{3}{8}\right)^{6} \times \left(\frac{3}{8}\right) = \left(\frac{3}{8}\right)^{13} \][/tex]

To solve for [tex]\( m \)[/tex], we start by using the properties of exponents. If we have the same base for multiplication, we can add the exponents. Therefore:
[tex]\[ \left(\frac{3}{8}\right)^{2m + 6 + 1} = \left(\frac{3}{8}\right)^{13} \][/tex]

Simplify the exponent on the left side:
[tex]\[ \left(\frac{3}{8}\right)^{2m + 7} = \left(\frac{3}{8}\right)^{13} \][/tex]

Since the bases are the same, we can set the exponents equal to each other:
[tex]\[ 2m + 7 = 13 \][/tex]

Next, solve this equation for [tex]\( m \)[/tex]:
[tex]\[ 2m + 7 = 13 \][/tex]

Subtract 7 from both sides:
[tex]\[ 2m = 6 \][/tex]

Divide both sides by 2:
[tex]\[ m = 3 \][/tex]

Therefore, the value of [tex]\( m \)[/tex] is:
[tex]\[ m = 3 \][/tex]