Aptitude - Logarithm - Discussion

Discussion Forum : Logarithm - General Questions (Q.No. 13)

Logarithm

13.

If a^x = b^y, then:

log	a	=	x
	b		y

log a	=	x
log b	=	y

log a	=	y
log b	=	x

None of these

Answer: Option

Explanation:

a^x = b^y

log a^x = log b^y

x log a = y log b

	log a	=	y	.
	log b		x

Discussion:

5 comments Page 1 of 1.

ROSEWANDER said: 1 decade ago

What will hapen if we divaided by log a each side?

Krishna said: 1 decade ago

Can we solve without log?

(1)

B.V. Krishna Teja said: 1 decade ago

There should be condition that a and b are non negitive. If a and b are negitive the above statement does not exist

Sure said: 8 years ago

Any other way to solve this? I mean without log.

Chandan said: 8 years ago

Why y/x?

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