Question

Mohon Bantuannya Kak Terima kasih ​

Answer 1

Verified answer

(sin 90° - tan 60°)/(tan 60° - cos 0°)

= (1 - tan 60°)/(tan 60° - cos 0°)

= (1 - √3)/(tan 60° - cos 0°)

= (1 - √3)/(√3 - cos 0°)

= (1 - √3)/(√3 - 1)

= ((1 - √3)) × ((√3 + 1))/((√3 - 1)) × ((√3 + 1))

= ((1 - √3)) × ((√3 + 1))/((√3)² - 1

= ((1 - √3) × (√3 + 1))/(3 - 1)

= ((1 - √3) × (√3 + 1))/2

= (1 - (√3)²/2

= (1 - 3)/2

= -2/2

= -1