Q 12 The tangent of the circle \( x^{2}+y^{2}=M+2 \) at the point \( (\alpha-1, \beta+1) \) also touches the circle \( x^{2}+y^{2}-4 a x-2 \beta y+20=0 \), then its point of contact is
a) \( (3,-1) \)
b) \( (-3,0) \)
c) \( (-1,-1) \)
d) \( (-2,1) \)
Integer Type \( (+3,-0) \)
Q 13 The numbers \( 2,3,4,5,6,7,8 \) are to be placed, one per square, in the diagram shown so that the sum of the
