Question

2 tan 30°
1-tan? 30°
sin 30°
tan 60° (d)
(a) cos 60°
(b) sin 60°
value of sin(60° +30°). V​

Answer 1

please help me brainlist

Answer 2

Answer:

sin(A+B)=sinAcosB+cosAsinB

sin(60+30)=sin60cos30+cos60sin30

$sin(90) = \sqrt{3} \div 2 \times \sqrt{3} \div 2 +1 \div 2 \times 1 \div 2 \\ 1 = 3 \div 4 \times 1 \div 4 \\ 1 = 4 \div 4 \\ 1 = 1$