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Through the point P(alpha,beta), where alpha beta>0 , the straight line (x)/(a)+(y)/(b)=1 is drawn so as to form a triangle of area S with the axes.If ab>0, then the least value of S is alpha beta(b)2 alpha beta (c) 3 alpha beta(d) none

Through the point P(alpha,beta) , where alphabeta>0, the straight line x/a+y/b=1 is drawn so as to form a triangle of area S with the axes. If a b >0, then the least value of S is (a) alphabeta (b) 2alphabeta (c) 3alphabeta (d) none

Through the point P(alpha,beta) , where alphabeta>0, the straight line x/a+y/b=1 is drawn so as to form a triangle of area S with the axes. If a b >0, then the least value of S is(a) alphabeta (b) 2alphabeta (c) 3alphabeta (d) none

Through the point P(alpha,beta) , where alphabeta>0, the straight line x/a+y/b=1 is drawn so as to form a triangle of area S with the axes. If a b >0, then the least value of S is alphabeta (b) 2alphabeta (c) 3alphabeta (d) none

If the straight line (x)/(a)+(y)/(b)=1 passes through the points (8,9) and (12,-15) find the values of a and b.

If y=3^(x-1)+3^(-x-1) , then the least value of y is

Through the point P(alpha,beta) , where alphabeta>0, the straight line x/a+y/b=1 is drawn so as to form a triangle of area S with the axes. If a b >0, then the least value of S is

Through the point P(alpha,beta) , where alphabeta>0, the straight line x/a+y/b=1 is drawn so as to form a triangle of area S with the axes. If a b >0, then the least value of S is

If the straight line y=my+1 be the tangent of the parabola y^2=4x at the point (1,2), then the value of m will be