`2. 8 768 ` is equal to `2(878)/(999)` (b) `2 9/(10)` (c) `2(292)/(333)` (d) `2(4394)/(4995)`

2.8768 is equal to 2(878)/(999) (b) 2(9)/(10)( c) 2(292)/(333) (d) 2(4394)/(4995)

When simplified,the product (2-(1)/(3))(2-(3)/(5))(2-(5)/(7))(2-(997)/(999)) is equal to (5)/(999) (b) (1001)/(999) (c) (1)/(1001) (d) (1001)/(3)

If (2)/(2+(2)/(2+(2)/(x)))=3, then x is equal to -(4)/(7) (b) (4)/(7)(c)-(4)/(9)(d)(4)/(9)

9sec^2A-9tan^2A is equal to (a) 1 (b) 9 (c) 8 (d) 0

sin ^(2) 5 ^(@) + sin ^(2) 10 ^(@) + sin^(2) 15 ^(@) + ... + sin ^(2) 90^(@) is equal to : a) 8 (1)/(2) b) 9 c) 9 (1)/(2) d) 4 (1)/(2)

The rational number equal to 2/(-3) is (a)(17)/(-18) (b) (-6)/9 (c)(-8)/(-12) (d) 3/(-2)

The rational number equal to 2/(-3) is (a)(17)/(-18) (b) (-6)/9 (c)(-8)/(-12) (d) 3/(-2)

1/(sqrt(9)-\ sqrt(8)) is equal to: (a) 3+2sqrt(2) (b) 1/(3+2sqrt(2)) (c) 3-2sqrt(2) (d) 3/2-\ sqrt(2)

9sec^(2)A-9tan^(2)A is equal to (a)1(b)9(c)8 (d) 0

(1)/(sqrt(9)-sqrt(8)) is equal to: 3+2sqrt(2)(b)(1)/(3+2sqrt(2)) (c) 3-2sqrt(2)(d)(3)/(2)-sqrt(2)