Question

（4tan30°)(5sin60°)-6cos60°​

Answer 1

7

Explanation:

Using exact values

(4tan30°)(5sin60°) - 6cos60°

= 20tan30°sin60° - 6cos60°

= 20 ×
`(1)/(√(3) )` ×
`(√(3) )/(2)` - 6 ×
`(1)/(2)`

=
`(20)/(2)` - 3

= 10 - 3

= 7

Answer 2

6.804

Explanation:

Given data:

（4tan30°)(5sin60°)-6cos60°​

Now it can be calculated as:

4(0.57)×5(0.86)-6(0.5)

2.28×4.3-3

9.804-3

6.804

Answer will be 6.804