In the figure ∠AMB = 130°, then what is the value (in deg) of ∠ABQ?
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If the mean of a, b, c is M and ab + bc + ca = 0, then the mean of a2+b2+c23 is :
We have : ( a + b + c) / 3 = M or (a + b + c) = 3M.
Now. a+b+c2=3M2=9M2 .
<=>a2+b2+c2+2ab+bc+ca=9M2
a2+b2+c2=9M2 ,(ab+bc+ca=0)
Required mean =a2+b2+c23=9M23=3M2 .
In the following question, select the odd letter/letters from the given alternatives.
Arrange the following words as per the order in the dictionary
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Refer the below table and answer the question.
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Select the odd figure out of the given series.
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