CAT like experience before 24 Nov 🥳 All-India Mocks by 100%iler at just ₹ 499 (Inc. Video solutions). Enroll now
Edit MetaData
If $$xy + yz + zx = 0$$, then $$(x + y + z)^2$$ equals
$$(x + y)^2 + xz$$
$$(x + z)^2 + xy$$
$$x^2 + y^2 + z^2$$
$$2(xy + yz + xz)$$
$$(x+y+z)^2 = x^2 + y^2 + z^2 + 2(xy + yz + xz)$$ as $$xy+yz+xz = 0$$ so equation will be resolved to $$x^2 + y^2 + z^2$$
Create a FREE account and get:
CAT Venn Diagrams
CAT Averages
CAT Logarithms, Surds and Indices
CAT Remainders
CAT Progressions and Series
CAT Simple Interest Compound Interest
CAT Data Sufficiency
CAT Averages Mixtures Alligations
CAT Time And Work
CAT Arithmetic
CAT Linear Equations
CAT Algebra
CAT Percentages
CAT Averages, Ratio and Proportion
CAT Number Systems
CAT Coordinate Geometry
CAT Number Series
CAT Geometry
CAT Logarithms
CAT Inequalities
CAT Time, Distance and Work
CAT Profit And Loss
CAT Time Speed Distance
CAT Mensuration
CAT Functions, Graphs and Statistics
CAT Probability, Combinatorics
CAT Quadratic Equations
CAT Profit, Loss and Interest
Login to your Cracku account.
Enter Valid Email
Follow us on
Incase of any issue contact support@cracku.in
Boost your Prep!
Quick, Easy and Effective Revision
By proceeding you agree to create your account
Free CAT Formulae PDF will be sent to your email address soon !!!
Join cracku.in for Expert Guidance.