WAEC - Mathematics (1990 - No. 38)

Use mathematical table to evaluate (cos40° - sin30°)

-0.2660

-0.0266

0.0266

0.2660

1.5320

Paaiškinimas

(cos 40° - sin 30°)

= 0.7660 - 0.5

= 0.2660

Komentarai (0)

Skelbimas