Question

ERCISE 8.2
Evaluate the following.
(i) sin 60° cos 30° + sin 30° cos 60°
(ii) 2 tan2 45° + cos2 30° - sina 60°
cos 45°
(iii)
sec 30° + cosec 30°
sin 30°+ tan 45° cosec 60°
(iv)
sec 30°+cos 60°+cot 45°​

Answer 1

Answer:

the answer of this question is:-

Answer 2

Answer:

let try

Step-by-step explanation:

(i) (√3/2)(√3/2+1/2(1/2)

=3/4+1/4=4/4=1

(ii)2(1)^2+(√3/2)^2-√3/2)^2

=2+3/4-3/4=2

(iii)2/√3+2(1/2)+(1)(2/√3)

=2/√3+1+2/√3

=4/√3+1=

(iv) (2/√3)+1/2+1

2(2)+√3+2√3/2√3

=4+3√3/2√3