Question

HELP HELP HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
make 'a' the subject

Answer 1

\[R _{1}=R _{2}(1+\alpha \theta)\]

Answer 2

Steps please :) :)

Answer 3

steps
1 divide both sides by R_2
2 subtract 1 from both sides
3 divide by \[\theta\]

Answer 4

does r1 divded by r2 equal r1 or r1/r2? @Jonask

Answer 5

when you divide by \(R_2\) both sides you get \(\dfrac{R_1}{R_2}\) on the left

Answer 6

can i have help with step 3? i have
\[\frac{ R _{1}-1 }{ R _{2} } = \alpha \theta \]

Answer 7

how do i divide by the 0? @Jonask

Answer 8

step 2 isnt very good,lets work on that first ,when u subtract both sides by 1 ,u dont subtract from the top part alone ut the whole fraction

eg. subtract 1 from \(\dfrac{3}{2}\) means \(\dfrac{3}{2}-1 \) and not \(\dfrac{3-1}{2}\)

Answer 9

oh i see

Answer 10

can u show me your step 2

Answer 11

subtract 1 from \(\dfrac{R_1}{R_2}\)

Answer 12

\[\frac{ R _{1} }{ R _{2} }-1 = \alpha \theta \]

Answer 13

is that right?

Answer 14

yes,thats right,now you can actually make it simper,by using this rule

\[\dfrac{a}{b}-1=\frac{a-b}{b}\]

Answer 15

does that mean it would be ..
\[\frac{ R _{1} }{ R _{2} }- 1=\frac{ R _{1}-R _{2} }{ R _{2}}\]

Answer 16

yes yes,finally we need to divide by \(\theta\),this is not zero(0),its called theta

\[\dfrac{R_1-R_2}{R_2}=\alpha\theta\]

divide both sides by \(\theta\)

Answer 17

okay i get this all but how do you divide a fraction?

Answer 18

(a/b)/c = a/(bc)

Answer 19

yes use the rule above ^^ by kc_kennylau

Answer 20

d\[\frac{ R _{1}- R _{2} }{ R _{2}\theta }\]

Answer 21

Is that what you mean?

Answer 22

yes exactly,you are done ,and correct

Answer 23

oh yay! thamnk you @Jonask so sos so so much! wow helped so much. It's so hard doing homework without the teacher. But you helped me so much! and thanks @kc_kennylau for the equation thats going to be so useful

Answer 24

Thanks for the acknowledgement and no problem at all :)

Answer 25

no problem @muppz ,your welcome