Thread: help rearranging this

i am wanting to rearrange to make h the subject h the subject and then b the subject

S= √(b2-h2)


can someone please help me

steve

Is your equation ?

If so start by squaring both sides,





Then adding to both sides



Finally taking the square root of both sides.





Do you follow?

Originally Posted by sugst893

i am wanting to rearrange to make h the subject h the subject and then b the subject

S= √(b2-h2)


can someone please help me

steve

I assume it's meant to be .... (Use h^2 NOT h2 to repesent powers).

Start by squaring both sides, then make the subject etc.

Originally Posted by pickslides

Is your equation ?

If so start by squaring both sides,





Then adding to both sides



Finally taking the square root of both sides.





Do you follow?

that is great thankyou so much if i want h the subject id do the same but divide doth sides by b is that correct

thats so great

Originally Posted by sugst893

that is great thankyou so much if i want h the subject id do the same but divide doth sides by b is that correct

thats so great

No. Post your working so that it can be reviewed.

ok so

first i would square both sides

then subtract s^2 from both sides

giving me h=sqrt{S^2-b^2}

stephen

No, if you want to make it this way, it's a little different.



Square both sides:



Now, Move b^2;



You see that there is a minus sign? Multiply both sides by -1:



Rearrange:



Now, you take the square root.