Question

X 9. (Sin 30'+cos 60')-(sin 60° + cos 30º) is equal to
(a) 0
(b)1+2 root 3
(c)1-root 3
(d)1+13​

Answer 1

Step-by-step explanation:

$( \frac{1}{2} + \frac{1}{2} ) - ( \frac{ \sqrt{3} }{2} + \frac{ \sqrt{3} }{2} ) \\ (\frac{1 + 1}{2} ) - ( \frac{ \sqrt{3} + \sqrt{3} }{2}) \\ \frac{2}{2} - \frac{2 \sqrt{3} }{2} \\ 1 - \sqrt{3} \: \: \: \: \: \: \: ans$

Answer 2

Answer:

c

Step-by-step explanation:

(sin30'+cos60')-(sin60'+cos30')

(1/2+1/2)-(✓3/2+✓3/2)

(2/2)-(2✓3/2)

(1)-(✓3)

1-✓3