SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-22

  • question_answer
    The value of\[1.02\times 1.02+1.96\times 1.02+0.98\times 0.98\]is-

    A)  \[1\]                            

    B)  \[4\]

    C)  \[2\]                            

    D)  \[2\sqrt{2}\]

    Correct Answer: B

    Solution :

     \[1.02\times 1.02+1.96\times 1.02+0.98\times 0.98\] Let \[a=1.02\]  and \[b=0.98\] \[\because \,\,\,\,\,\,\,{{a}^{2}}+2ab+{{b}^{2}}={{(a+b)}^{2}}\] \[\therefore \,\,\,\,\,\,{{(1.02+0.98)}^{2}}=\underline{\mathbf{4}}\]


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