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1. (&), , (@), , (1), , (a), , (S), , (a), , 428 (IMV), , ale xe [-1, 1], at sin*x+cos?x OT AM BMT - 1, , If xe [-1, 1], then value of sin-'x+cos™x will be , (i) x (ii) 2/2 (iii) 1 (iv) 2n, 2x 3 2 3, , oe [ 2]-[2 2axerman. |, 2x 3) [2 3 ., , If 0 1l-lo1 then the value of x will be , (i) 0 qi) 1 (ii) 2 (iv) 3, , Web eS GH x Sasa oy faeer S oa Ser BT WaT F R(x) = 3x24 10x45 Bea, , @l Fa x=15 2 ot Stara sae: 1, , The total revenue in Rupees received from the sale of x units of a product, is given by R(x) = 3x?+10x+5. The marginal revenue, when x=15 is :, , (i) 100 (ii) 105 (iii) 90 (iv) 126, , e Br Sacre : 1, Differentiation of e* is , (i) 3e° (ii)? (ili) (iv) 3x?e”, , aR OS aa feet Hane won & aa eer F safe wes sre at eT z:, , 1, The number of arbitrary constants in the general solution of a differential, equation of fourth order are :, , {i) 0 (i) 1 (iii) 3 (iv) 4, , afe et Wadet A.xX+B,y+C,z+D,=0 HR A,x+B,y+C,z+D,=0 TER aa 2, at, 1, If two planes A,x+B,y+C,z+D,=0 and A,x+B,y+C,z+D,=0 are mutually, , perpendicular, then, , (i) A,A,+B,B,+C,C,=0 (ii) A,A,+B,B,+C,C,=1, , wy Ar 8 _& ., , (i) 4B OG (iv) A,A,+B,B,+C,C,=-1, [2]