sin(-660) tan(1050)sec(-420)÷cos(250) cosec(315) cos(510)
Answers
Answered by
9
Let y = ( sin(-660) tan(1050) sec(-420) ) / ( cos(250) cosec(315) cos(510) )
= ( sin(-660) tan(1050) sin(315) ) / ( cos(250) cos(-420) cos(510) )
cos (-x) = cos x and sin (-x) = -sin x
Thus y = ( (-sin(660)) tan(1050) sin(315) ) / ( cos(250) cos(420) cos(510) )
Subtracting each angle values with the nearest multiples of 360
y= ( (-sin(60)) tan(30) sin(45) ) / ( cos(45) cos(60) cos(30) )
Substituting values for 30,45 & 60
y = 2/
Similar questions