UP TET 08-01-2020 Paper-I-Set-A

91.यदि हो, तो k का मान है : A) 1/2 B) 2 C) 1 D) 3/2 Sol:B Put a=b=c=1, k=2 Or सभी समीकरण को जोड़ने पर, 2(a+b+c)=(a+b+c)k k=2 92. निम्नलिखित n से कोई तीन मापों को लेकर कुल कितने त्रिभुज बनाये जा सकते हैं ? भुजा की माप 1.2 cm, 1.4 cm 5.9 cm और…

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HOW DO ORGANISMS REPRODUCE?

Importance of variation The consistency of DNA copying during reproduction is important, which leads to the stability of population species. Changes in an ecological system, is beyond our control like varying temperature, varying water level and natural calamities, can wipe out the population species. So, if there are some variations that are present in some…

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