sorry, still part of the same qn

**maybeline9216** · October 10th 2008, 03:47 AM

$3 = 3 e^{\ln \left(1/\sqrt{3}\right)} + e^{\ln \sqrt{3}} = \frac{3}{\sqrt{3}} + \sqrt{3} = 2 \sqrt{3}$

How do u get this?

**ticbol** · October 10th 2008, 04:18 AM

Originally Posted by maybeline9216

$3 = 3 e^{\ln \left(1/\sqrt{3}\right)} + e^{\ln \sqrt{3}} = \frac{3}{\sqrt{3}} + \sqrt{3} = 2 \sqrt{3}$

How do u get this?

The LHS must be y, not 3.

e^[ln(y)] = y
e^[ln(1/3)] = 1/3
So,
e^[ln(1/sqrt(3))] = 1/sqrt(3)

Thus,
y = 3/sqrt(3) +sqrt(3)
y = sqrt(3) +sqrt(3)
y = 2sqrt(3)

Thread: sorry, still part of the same qn

LinkBack

Thread Tools

Display

sorry, still part of the same qn

Similar Math Help Forum Discussions

Discriminant of Roots - Stucked @ part ii after completing part i

Stucked @ part ii after comleting part i

Sum of a part arithmatic and part geometric sequence

Intergrals ( u SUB ) ... Part to part

Finding the derivative of this integral using part I AND part II of FTC