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Question Number 109400    Answers: 1   Comments: 4

Question Number 109396    Answers: 1   Comments: 0

If z^(1/2) =x^(1/2) +y^(1/2) Prove that (x+y−z)^2 =4xy

$$\mathrm{If}\:{z}^{\frac{\mathrm{1}}{\mathrm{2}}} ={x}^{\frac{\mathrm{1}}{\mathrm{2}}} +{y}^{\frac{\mathrm{1}}{\mathrm{2}}} \\ $$$$\mathrm{Prove}\:\mathrm{that}\:\left({x}+{y}−{z}\right)^{\mathrm{2}} =\mathrm{4}{xy} \\ $$

Question Number 109387    Answers: 0   Comments: 1

SUCCESSFULLY How many different words can you form using these letters so that no two same letters are adjacent?

$$\boldsymbol{\mathrm{SUCCESSFULLY}} \\ $$$${How}\:{many}\:{different}\:{words}\:{can}\:{you} \\ $$$${form}\:{using}\:{these}\:{letters}\:{so}\:{that}\:{no} \\ $$$${two}\:{same}\:{letters}\:{are}\:{adjacent}? \\ $$

Question Number 109449    Answers: 0   Comments: 0

Question Number 109448    Answers: 0   Comments: 0

Question Number 109378    Answers: 4   Comments: 0

Question Number 109377    Answers: 1   Comments: 0

Question Number 109373    Answers: 3   Comments: 11

Question Number 109369    Answers: 2   Comments: 0

Question Number 109366    Answers: 0   Comments: 1

Question Number 109352    Answers: 0   Comments: 0

Question Number 109353    Answers: 0   Comments: 2

Question Number 109343    Answers: 2   Comments: 1

Question Number 109342    Answers: 0   Comments: 3

Question Number 109336    Answers: 1   Comments: 3

Question Number 109329    Answers: 0   Comments: 1

if all A,B be a set prove that( A^B = ∅↔A=∅ and B=∅) help me sir

$${if}\:{all}\:{A},{B}\:{be}\:{a}\:{set}\:{prove}\:{that}\left(\:{A}^{{B}} =\:\emptyset\leftrightarrow{A}=\emptyset\:{and}\:{B}=\emptyset\right)\: \\ $$$${help}\:{me}\:{sir}\: \\ $$

Question Number 109320    Answers: 0   Comments: 0

Question Number 109307    Answers: 1   Comments: 0

Question Number 109305    Answers: 2   Comments: 0

Question Number 109303    Answers: 0   Comments: 1

Question Number 109302    Answers: 5   Comments: 0

Question Number 109290    Answers: 2   Comments: 0

Question Number 109284    Answers: 7   Comments: 0

Question Number 109282    Answers: 0   Comments: 0

Question Number 109271    Answers: 0   Comments: 1

Question Number 109268    Answers: 1   Comments: 5

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