Question

6. The value of -3/5 × 4/7 × 15/16 × (-14/9) is equal to

(A)1/4
(B)1/2
(C)1/6
(D)1/8​

Answer 1

Answer:

answer for the given problem is given

Answer 2

Option (B) 1/2

Solution :-

-3/5 × 4/7 × 15/16 × (-14/9)

=> 3 × 4/7 × 5/16 × (-14/9)

=> 3 × 4 × 3/16 × 2/9

=> 4 × 3/16 × 2/3

=> 4/3 × 2/3

=> 1/4 × 2

=> 2/4

=> 1/2

Alternate forms,

=> 0.5 , 2^{-1}

Some algebraic identities,

• (a + b)² = a² + 2ab + b²

• (a - b)² = a² - 2ab + b²

• a²- b² = (a + b) (a - b)

• (a + b)³ = a³ + 3a²b + 3ab² + b³

• (a - b)³ = a³ - 3a²b + 3ab² - b³