[" 2.If tand equals the integral of the inequality "],[4x^(2)-16x+15<0" and "cos beta" equals to the slope of the "],[" bisector of first quadrant,then "sin(alpha+beta)sin(alpha-beta)" is "],[" equal to "],[[" (a) "(3)/(5)," (b) "-(3)/(5)," (c) "(2)/(sqrt(5))," (d) "(4)/(5)]]

If tan alpha is equal to the integral solution of the inequality 4x^(2)-16x+15<0 and cos beta is equal to the slope of the bisector of the first quadrant,then sin(alpha+beta)sin(alpha-beta) is equal to (a)(3)/(5) (b) (3)/(5) (c) (2)/(sqrt(5)) (d) (4)/(5)

If tan alpha is equal to the integral solution of the inequality 4x^(2)-16x+15lt0 and cos beta is equal to the slope of the bisector of the coordinate axes in the first quadrant, then sin(alpha+beta)sin(alpha-beta) is equal to

If cot alpha equals the integral solution of inequality 4x ^(2)-16x+15 le 0 and sin beta equals to the slope of the bisector of the first quadrant, then sin (alpha+ beta) sin (alpha - beta) is equal to:

If tanalpha is equal to the integral solution of the inequality 4x^2-16 x+15<0 and cosbeta is equal to the slope of the bisector of the first quadrant, then sin(alpha+beta)sin(alpha-beta) is equal to (a) 3/5 (b) 3/5 (c) 2/(sqrt(5)) (d) 4/5

If tanalpha is equal to the integral solution of the inequality 4x^2-16 x+15<0 and cosbeta is equal to the slope of the bisector of the first quadrant, then sin(alpha+beta)sin(alpha-beta) is equal to (a) 3/5 (b) 3/5 (c) 2/(sqrt(5)) (d) 4/5

If tanalpha is equal to the integral solution of the inequality 4x^2-16 x+15<0 and cosbeta is equal to the slope of the bisector of the first quadrant, then sin(alpha+beta)sin(alpha-beta) is equal to (a) 3/5 (b) 3/5 (c) 2/(sqrt(5)) (d) 4/5

Solve the inequality 4(3-x)le16 .

In the following incomplete sentences fill in the blanks such that the resulting sentences become true. If tan alpha is an integral solution of the inequation 4x^(2) -16x + 15 lt 0 and cos beta is the slope of the bisector of the angle in the first quadrant between the x and y axes then the value of sin(alpha +beta)* sin(alpha - beta) =__________.