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Quadratic Equation and Inequalities question

2023 · 6 Apr · Shift 1 · Q23
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  5. /2023 · 6 Apr · Shift 1 · Q23

Quadratic Equation and Inequalities question

2023 · 6 Apr · Shift 1 · Q23

JEE MainMathematicsQuadratic Equation and InequalitiesMCQ+4 / −1
Let A={x∈R:[x+3]+[x+4]≤3},A = \{ x \in R:[x + 3] + [x + 4] \le 3\} ,A={x∈R:[x+3]+[x+4]≤3}, B={x∈R:3x(∑r=1∞310r)x−3<3−3x},B = \left\{ {x \in R:{3^x}{{\left( {\sum\limits_{r = 1}^\infty {{3 \over {{{10}^r}}}} } \right)}^{x - 3}} \lt {3^{ - 3x}}} \right\},B=⎩⎨⎧​x∈R:3x(r=1∑∞​10r3​)x−3<3−3x⎭⎬⎫​, where [t] denotes greatest integer function. Then,
  1. A
    B⊂C,AeBB \subset C,A e BB⊂C,AeB
  2. B
    A⊂B,AeBA \subset B,A e BA⊂B,AeB
  3. C
    A=BA = BA=B
  4. D
    A∩B=ϕA \cap B = \phiA∩B=ϕ
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