₦airaland Forum

Solve this maths question and win a prize. Inspection method is not allowed, but you must show your work by snapping and uploading the image here.

It's jst too simple, no need to show workin sef cos the answer is between 0-9

Guy dem give you homework for school, nahim you carry am come NL de fyn who go help you do am abi?

Wia you been de wen de tisha been de tish am for class? U de de play WHOT abi?

OYO

niffymizzy:
It's jst too simple, no need to show workin sef cos the answer is between 0-9

You ehn....

watchthisposter:
Guy dem give you homework for school, nahim you carry am come NL de fyn who go help you do am abi?

Wia you been de wen de tisha been de tish am for class? U de de play WHOT abi?

OYO

If you must know,that's a question I solved in my 100L days in UNILAG way back 2001.

waleadex:
Solve this maths question and win a prize. Inspection method is not allowed, but you must show your work by snapping and uploading the image here.

*******Solution******


taking ratio with 4^x throughout,

we have

(3/4)^x + 1= (5/4)^x

=>(0.75)^x -( 1.25)^x+1

=(1-0.25)^x -(1+0.25)^x +1

Now by. binomials, (1+r)^p=1+pr + 0.5p(p-1)r² +. . .

we thus have

1-0.25x -1-0.25x +1 =0

=> x=1/0.5

hence x=2

guess am right.

agentofchange1:
*******Solution******


taking ratio with 4^x throughout,

we have

(3/4)^x + 1= (5/4)^x

=>(0.75)^x -( 1.25)^x+1

=(1-0.25)^x -(1+0.25)^x +1

Now by. binomials, (1+r)^p=1+pr + 0.5p(p-1)r[sup]2[sup] +. . .

we thus have

1-0.25x -1-0.25x +1 =0

=> x=1/0.5

hence x=2

guess am right.

Though you got the answer but I have a different approach to solving the problem. Send your number so I credit your phone ASAP.

waleadex:
Though you got the answer but I have a different approach to solving the problem. Send your number so I credit your phone ASAP.

OK. boss..


07064396712


thanks ..let's see your approach .

Another approach is making use of Logarithm.

From pythagorean triple a^2+b^2=c^2 where (a,b,c) are (3,4,5).... 3^x+4^x=5^x therefore x=2 because (a,b,c) are pythagorean triple.

agentofchange1:
OK. boss..


07064396712


thanks ..let's see your approach .

Airtime sent....

waleadex:
Airtime sent....

wow...confirmed.!!

tnx
...sir..

agentofchange1:
wow...confirmed.!!

tnx
...sir..

You're welcome...

bolkay47:
From pythagorean triple a^2+b^2=c^2 where (a,b,c) are (3,4,5).... 3^x+4^x=5^x therefore x=2 because (a,b,c) are pythagorean triple.

This your method is simply called inspection method.

waleadex:
This your method is simply called inspection method.

ok sir....