Find , and the number of elements in it, where
We are asked to find (A \times B) (the Cartesian product of sets (A) and (B)) and the number of elements in it. Let us solve this step by step. Suppose [ A = _______ ___ _______ _______ ____ ______ _____ __________ ______ __________.
_______ ___ __________ ________ __________ ________ ____ _____.
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_____ ______ _____ __________ _____ _________ __________ ____ _______ ___ ___.
_________ __________ _________ __________ ___ ___ _______ ________ _________.
_________ ____ __________ _____ _______ _______ ____ __________ ___.
_________ _________ ___ ________ ___ _____ _____ ______ ____ _______.
________ ___ _____ ___ ________ _______.
________ _______ ___ _____ ___ ___ ________ _________ _______ _____.
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_________ _____ ____ _____ ___ __________.
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Express the following situation in a Venn diagram:
In a survey of 60 women, it is found that 25 have studied upto Class 12 only, 10 have studied till Class 10 only, 26 got scholarships, 9 of those studying till Class 12 got scholarships, 8 of those studying till Class 10 got scholarships, and 11 had completed their BA degree.
Give the following:
i) a matrix;
ii) the transpose of the matrix in (i) above;
iii) a system of linear equations represented by , where A is the matrix in (ii) above.
Which of the following statements are true? Justify your answers. (This means that if you think a statement is false, give a short proof or an example that shows it is false. If it is true, give a short proof for saying so. For instance, to show that ‘{1, padma, blue} is a set’ is true, you need to say that this is true because it is a well-defined collection of 3 objects.)
i) Eliminating z from ,
and
gives
.
ii) The roots of are given by
.
iii) .
iv) Given any n positive numbers in , the product of their harmonic mean and their arithmetic mean is 1.
v) If A and B are two sets such that is empty, then either
or
.
vi) For any .
vii) The geometrical representation of the set is a point.
viii) Any finite set is a subset of .
ix) Every biquadratic equation has at least one real root.
x) The converse of the statement, ‘Every student of MTE-04 has completed FST-01’, is ‘Every student of FST-01 has completed MTE-04’.
विविक्तकर का प्रयोग करते हुए, के मूलों की प्रकृति बताइए। इस समीकरण को हल भी कीजिए।
ख) वह त्रिघात समीकरण ज्ञात कीजिए जिसके मूल के मूलों के घन हैं।
ग) समीकरण के साधक त्रिघाती देकार्त की विधि तथा फ़ेरारी की विधि द्वारा प्राप्त कीजिए। क्या दोनों त्रिघाती समान हैं? साथ ही, इनमें से किसी एक विधि द्वारा इस समीकरण के मूल प्राप्त कीजिए।
यदि A और B क्रमशः समपूर्णांकों और विषम पूर्णांकों के समुच्चय हैं, तो और
ज्ञात कीजिए।
Give a real life situation problem, which is mathematically translated into
.
Also, explain how this linear system models your problem.
Which of the following statements are true? Justify your answers. (This means that if you think a statement is false, give a short proof or an example that shows it is false. If it is true, give a short proof for saying so. For instance, to show that ‘{1, padma, blue} is a set’ is true, you need to say that this is true because it is a well-defined collection of 3 objects.)
i) Eliminating z from ,
and
gives
.
ii) The roots of are given by
.
iii) .
iv) Given any n positive numbers in , the product of their harmonic mean and their arithmetic mean is 1.
v) If A and B are two sets such that is empty, then either
or
.
vi) For any .
vii) The geometrical representation of the set is a point.
viii) Any finite set is a subset of .
ix) Every biquadratic equation has at least one real root.
x) The converse of the statement, ‘Every student of MTE-04 has completed FST-01’, is ‘Every student of FST-01 has completed MTE-04’.