Question

plz slove questions no.6

Answer 1

answer is( b ) = 4....

Answer 2

hello mate!.....
$given..... \\ \\ \sqrt{2401} = \sqrt{7 {}^{x} } \\ \sqrt{7 {}^{4} } = \sqrt{7 {}^{x} } \\ 7 {}^{ 4\times \frac{1}{2} } = 7 {}^{x \times \frac{1}{2} } \\ 7 {}^{2} = 7 {}^{ \frac{x}{2} } \\ we \: know \: \\ x {}^{a} = x {}^{b} \\ soo...a = b \\ 2 = \frac{x}{2} \\ x = 4 \\ hope \: it \: helps \: u \: dear....$