Question

Prove that ) cos 90º = 4 sinº 60°+3 tanº 30° - 8 sin 45°cos 45° tan 60°-tan 30° tan 30°​

Answer 1

Answer:

Hello Buddy

Step-by-step explanation:

4×(23)2+3×(31)2−8×21×21

4×(23)2+3×(31)2−8×21×21=4×43+3×31−8×21

4×(23)2+3×(31)2−8×21×21=4×43+3×31−8×21=3+1−4=0