@amresh_maverick kya haal chal boss ? CAT 13 ?-----------------------------------------------------------Itz not a spam Q. Find the number of pairs possible. x^2-y^2 = 98
Infinite.
Oh, you meant integers? Well, why didn't you say so? Zero, that I can spot.
@amresh_maverick kya haal chal boss ? CAT 13 ?-----------------------------------------------------------Itz not a spam Q. Find the number of pairs possible. x^2-y^2 = 98
0 pairs possible. (x-y)(x+y) = 98
Both x-y and x+y can be either odd or even. Case 1. Both are Odd, Product of two odd numbers can't be even. So not possible
Case2. Both are even 98 cannot be expressed as a product of two even numbers. Hence no case possible.
@amresh_maverick kya haal chal boss ? CAT 13 ?-----------------------------------------------------------Itz not a spam Q. Find the number of pairs possible. x^2-y^2 = 98
see it like this...a=0,b=1,c=2,d=4a+d=4and b+c=3ora=1,b=2,c=3,d=4b+c=5and a+d=5so it would either be same or be less...but never more than a+dit wld always happen in cases where au can try with random numbers and see for yourself...
In the given figure, there are two concentric circles with radii 10 cm and 20 cm. Also, AB and AC are tangents to the circle with radius 10 cm at P and Q respectively, PQ = 19 cm and BC is a tangent to the circle with radius 20 cm. Find the area of Δ ABC in cm2.
see it like this...a=0,b=1,c=2,d=4a+d=4and b+c=3ora=1,b=2,c=3,d=4b+c=5and a+d=5so it would either be same or be less...but never more than a+dit wld always happen in cases where au can try with random numbers and see for yourself...
is it true for this question only? because cases like a=0,b=3,c=4 and d=5 don't satisfy this...
In the given figure, there are two concentric circles with radii 10 cm and 20 cm. Also, ABand AC are tangents to the circle with radius 10 cm at P and Q respectively, PQ = 19 cmand BC is a tangent to the circle with radius 20 cm. Find the area of Δ ABC in cm2.(Take 3 = 1.732 and 39 = 6.25).1] 885.5 cm22] 306.5 cm2 3] 353.5 cm2 4] 994.5 cm2P.S : Refer to the figure attached, kindly provide the approach !
two options eliminated it has to be 1 or 4, Taking a guess here option 4> 994.5 cm^2
bohot sahi...and there was an option of 15/2...wohi answer hona chahiye fir toh...ye wala case kaise nikaala?? matlab how did u come to it??
Consider a, b, c, d in order
Now min cases are (a+b), (a+c) and max are (c+d), (b+d) only the middle two are uncertain (a+c) and (b+d). So solve two sets of eqns - one which you did and the second taking (a+d) = 3 and (b+c) = 4, which yield the other solution. regards scrabbler
A lot of repetitionsABC from state X ,MNO from state Y , PQR from state Z Suppose u selected 1 from each state : A , M and Pand to random, let us say : Q, RYour group : A,M ,P,Q,RNow suppose u chose : A, M, R (1 from each state) + P, Q (2 from each state)Your group : A,M ,P,Q,R ------a repeatu get the drift ?
