Ayushi Asked a Question
August 13, 2020 12:36 pmpts 30 pts
76. If A = (1, 2, 3), B (, Y), then the number of functions that can be defined from A into B is f A = (1, 2, 3), B = (X, Y), a A ÀB AÍ uRTta v B (1) 12 (2) 8 (3) 6 (4) 3 2X+2X 77. If f (X) = then f (X + Y)-f(X-Y) is equal to 2 af(X)= f(X+Y):f (X -Y) aT 2 (1)s(2x) +f(2Y)] (2) 4If (2X) -f (2Y)] (3)1S (2X)+ f (2Y)) (4) 4f (2x)-f (2Y)) 10+ X 200X 78. If elA= 10-X Xe(-10, 10) and f(X)=k-f k:f200X 100+X2 then k= eSlX)-10+ X zfX 10t Xe(-10, 10) q7 S(X) = k f| T k H R 200X 10-X 100+x2J (2) 0-6 (3) 07 4) 08 (1) 0-5
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  • Ashish sharma Best Answer
    answer 76 https://doubtnut.com/question/8-if-a-123-b-xy-then-the-number-of-function-that-can-be-defined-from-into-b-is-16574700
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  • Ashish sharma thankyou
    I hope these links will help you in understanding the Ques
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  • Ashish sharma
    answer -77 https://amp.doubtnut.com/question-answer/if-fx2x-2-x-2-then-fx-yfx-y-is-equals-to-1-2f2x-f2y-b-1-2f2x-f2y-c-1-4f2x-f2y-1-4f2x-ab
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  • Ashish sharma
    answer 78 option-A please refer the solution
    • cropped2246650439511543072.jpg
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