Question

prove by principal of mathematical induction
p(n)=9^n-1 divisible by 8 where n is a natural number?​

Answer to this question
if BRAIN is WORTHY
​

Answer 1

Step-by-step explanation:

Answer:

Given :-

A person weight is 60 Newton stands on both feet of area 0.25 square metre.

To Find :-

What is the pressure exerted on one feet.

Formula Used :-

${\red{\boxed{\large{\bold{Pressure =\: \dfrac{Force}{Area}}}}}}$

Solution :-

Given :

Force = 60 N

Area = 0.25 m²

According to the question by using the formula we get,

$⇒ \sf Pressure =\: \dfrac{60 \times 100}{25}$

$⇒ \sf Pressure =\: \dfrac{6000}{25}$

$⇒ \sf Pressure =\: \dfrac{\cancel{6000} \: \: ^{1200}}{\cancel{25} \: \: ^{5}}$

$⇒ \sf Pressure =\: \dfrac{\cancel{1200} \: \: ^{240}}{\cancel{5} \: \: ^{1}}$

$⇒ \sf Pressure =\: \dfrac{240}{1}$

$➠ \sf\bold{\purple{Pressure =\: 240\: N/{m}^{2}}}$

∴ The pressure exerted on one feet is 240 N/m² .

Answer 2

Answer:

Refer to the attachment ☺