Which of the following statements are true? Give reasons for your answers.
i) If a group G is isomorphic to one of its proper subgroups, then .
ii) If x and y are elements of a non-abelian group (G, ) such that , then
or
, where e is the identity of G with respect to $$.
iii) There exists a unique non-abelian group of prime order.
iv) If , where A is a group, then
.
v) If H and K are normal subgroups of a group G, then .
i) False. If a group (G) is isomorphic to one of its proper subgroups, it does not necessarily imply any specific equation unless further context is given. For finite groups, this is impossible because the order of a proper subgroup is strictly less than the order of the group, so a finite group ______ ___ ________ ____ ____ ________ __________ ______.
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State whether the following statements are true or false. Give a Short proof or a counter-example in support of your answer.
a) The equation has not root in the interval [3, 5].
b) , where E is the shift operator and
is the forward difference operator.
c) Every system of linear equations can be solved using the LU decomposition method.
d) For the data (2, 4), (1, 5), (3, 6) the Newton's divided difference f[x0, x1, x2] is .
e) The Newton-Raphson method cannot be used to find a cube root of a positive real number.
निम्नलिखित आंकड़ों के लिए, गाउस पश्चांतर विधि का प्रयोग करके को अंतर्वेशी करने वाला बहुपद प्राप्त कीजिए :
| x | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 |
| f (x) | 1.40 | 1.56 | 1.76 | 2.00 | 2.28 |
सांशलेषिक विभाजन विधि का प्रयोग करके यह दर्शाइए कि 2, समीकरण का एक सरल मूल है।
Using synthetic division method, show that 2 is a simple root of the equation
.
Determine the order of convergence of the iterative method
for finding a simple root of the equation .
Is , for any two ideals I and J of a ring R? Give reasons for your answer.
List two distinct cosets of in D10, where r is a reflection in D10.