without using trigonometric tables find the values of sin60*cos30+cos60*sin30
Answers
Answered by
6
Step-by-step explanation:
sin60cos30+cos60sin30
=sin(60+30)
=sin90
=1
Answered by
2
Answer:
1
Step-by-step explanation:
sin(90-x) = cos x
cos(90-x) = sin x
using these,
cos30=sin60. -1
sin30=cos60. - 2
substituting 1 and 2 in equation-
sin² 60 + cos²60
=1
as sin²x + cos²x =1
Similar questions