Question

http://s4.postimg.org/mz05r86v1/image.jpg Can someone help with B) ?

Answer 1

Is that the answer in right of B

Answer 2

No its another part of b

Answer 3

2log5. (5)^1/2=2×1/2 log5(5)
=1
Here first 5 represents the base

Answer 4

log2 8 + log4 1 - log7 1/49

Recall that the log of a number to a given base is the exponent to which the base is taken to give the number.

eg log2 8 = 3 because 2^3 = 8

Answer 5

so log4 1 is
4^x = 1 - what is the value of x?

Answer 6

OH Maybe I scared her away!!

Answer 7

That's not B, but if someone can do A
,can also do the B options ,I think so

Answer 8

Yes Its the same concept.

Answer 9

I dont understand ones with roots xd

Answer 10

Isnt log4 1 = 0 ? -.-

Answer 11

Yes log 1 is always 0 for any base of log

Answer 12

And for roots just take the power=1/2
Example:- log√x=log (x)^1/2
=1/2(log x)

Answer 13

So the answer of B is 10? Is it right?

Answer 14

Yes