[" If the line "y cos alpha=x" sind "+" a cosa be a tangent "],[" to the circle "x^(2)+y^(2)=a^(2)" then "]

If the line y cos alpha = x sin alpha +a cos alpha be a tangent to the circle x^(2)+y^(2)=a^(2) , then

If the line y cos alpha = x sin alpha +a cos alpha be a tangent to the circle x^(2)+y^(2)=a^(2) , then

If the line y cos alpha=x sin alpha+a cos alpha be a tangtnt to the circle x^(2)+y^(2)=a^(2) then

If the straight line y= x sin alpha + a sec alpha is a tangent to the circle x^(2) + y^(2) = a^(2) then-

If the straight line y= x sin alpha+ a sec alpha be a tangent ot the circle x^(2)+y^(2)=a^(2) , then show that cos^(2)alpha=1

Line y=x+asqrt2 is a tangent to the circle x^2+y^2=a^2 at

Find the condition that the line x cos alpha + y sin alpha = p may be a tangent to the curve (x^2)/(a^2) + (y^2)/(b^2) = 1

The condition that the line x cos alpha + y sin alpha =p to be a tangent to the hyperbola x^(2)//a^(2) -y^(2)//b^(2) =1 is

The condition that the line x cos alpha + y sin alpha =p to be a tangent to the hyperbola x^(2)//a^(2) -y^(2)//b^(2) =1 is