Class notes
Note lecture mathematics sec v
- Course
- 201-015-RE
- Institution
- Dawson College ( )
These are notes for the sec v math
[Show more]
Seller
Follow
Content preview
Solving Radical Equationsoperation of Tx is ✗
^
The So to solve radical
-
opposite .
, equations,
take the
power of the index n of both sides of the equation
to get rid
of the radicals .
We must check our solutions to make
that
sure
they work in the
original equation
Fito
Eg : Solve the
equation :
-
✗ = I
* In order
,
to
get rid of the square
-
root, we'll square both
sides ,
but first let's isolate the radical on one side of the
equation ( otherwise ,
we won't get rid of it when we square)
¥-10 = ✗ 1- I
(52×+0)
'
= 1×1-112
2×1-10 = ✗4-2×+1
0 = 2+2×+1
✗ -
2×-10
0=+2-9
0=1×-311×+31 { ✗ -3=0
✗ 1-3=0
✗=3
✗ =-3
Then ,
check solutions : -
It -
3 =
1 ? -
¥+10K 3) =/ ?
To -3 = 1 ? At 3=1 ?
4- 3 = 1 ✓ 21-3=16 false
so the see is ✗ =3
NO It be the case that we need to square both
may
-
:
sides multiple times in order to get rid of all the square
roots
la.GL?a2-2abtb2Lr2xiT--rxK=
.
Eg : Solve 52×+1 -
Fx = I
a
(1)
(5×+7) tlfxd =L
'
-
2A t lfx
2×+1 -
2 Tax + Fx 1- ✗ =L
Now isolate the root term & root
,
, sq again .
252×+7 Fx =-3 ✗ 1-25×+1
-
. rxK= C- 3×12
412×1-1 ) ✗ = 9×2=38×2+4 ✗ =qx2 ✗2-411=0 =) XCX -41=0
.
✗= 0,11=4
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller gland_mack0m. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for CA$11.60. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75632 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now