Q1. The locus of extremities of the latus rectum of the family of Ellipse b^{2}x^{2}+y^{2} =a^{2}b^{2}.
Q2. Total no. of divisors of m=3^{5}5^{7}7^{9} that are of the form (4k+1) is equal to 2.P!. Then P is.
Q3. Consider a ladder resting up against a wall. Now a boy starts climbing it from the bottom(B) towards the top(A) of the ladder. Then
a) Normal Reaction at A increases
b) Normal Reaction at A decreases
c) Normal Reaction at B will remain Unchanged
d) Force of friction at B will increase.
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4 Answers
71Q4.The lines parallel to normal to the curve xy =5 is/are :
a) 3x+4y+5=0
b) 3x-4y+5=0
c) 4x+3y+5=0
d) 3y-4x+5=0
71Arrey bhai ye doubts hai try ke liye nahi hai.. so please reply.