Maths
Has anyone have a clue how to solve this?
calculate the value of y for which 2 log 3 y - log 3 (y+4) = 2
Thanks in advance
calculate the value of y for which 2 log 3 y - log 3 (y+4) = 2
Thanks in advance
Is it to base 3 or just log?
I would do:
log3[ (y^2)/(y + 4) ] = 2
(y^2)/(y + 4) = 9
And go from there.
I would do:
log3[ (y^2)/(y + 4) ] = 2
(y^2)/(y + 4) = 9
And go from there.
(edited 10 years ago)
Original post by Regency
Has anyone have a clue how to solve this?
calculate the value of y for which 2 log 3 y - log 3 (y+4) = 2
Thanks in advance
calculate the value of y for which 2 log 3 y - log 3 (y+4) = 2
Thanks in advance
(edited 10 years ago)
Original post by StarvingAutist
Is it to base 3 or just log?
I would do:
log3[ (y^2)/(y + 4) ] = 2
(y^2)/(y + 4) = 9
And go from there.
I would do:
log3[ (y^2)/(y + 4) ] = 2
(y^2)/(y + 4) = 9
And go from there.
Yeah it was base 3 and thanks it helped
Original post by Jkizer
Thank you
Original post by Regency
Yeah it was base 3 and thanks it helped
No problem, you just have to use the log rules (guy above explained it better)
Original post by StarvingAutist
No problem, you just have to use the log rules (guy above explained it better)
You both helped
Hi sorry to bother you but could you help me with this question please:
This question is taken from C2: mixed exercises booklet - EX6D
A triangle OCD with
OC=17cm
OD=17cm
CD=30cm
The midpoint of CD is M. With centre M, a semicircular arc A1 is drawn on CD as diameter. With centre O and radius 17cm, a circular arc A2 is drawn from C to D. The shaded region R is bounded by the arcs A1 and A2. Find
a) The area of triangle OCD
b)The angle COD in radians
c)Area of shaded region R
Thanks in advance
This question is taken from C2: mixed exercises booklet - EX6D
A triangle OCD with
OC=17cm
OD=17cm
CD=30cm
The midpoint of CD is M. With centre M, a semicircular arc A1 is drawn on CD as diameter. With centre O and radius 17cm, a circular arc A2 is drawn from C to D. The shaded region R is bounded by the arcs A1 and A2. Find
a) The area of triangle OCD
b)The angle COD in radians
c)Area of shaded region R
Thanks in advance
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