Advertisements
Advertisements
Question
Evaluate the following:
2tan2 45° + cos2 30° − sin2 60°
Sum
Advertisements
Solution
2tan2 45° + cos2 30° − sin2 60°
= `2(1)^2 + ((sqrt3)/2)^2 - ((sqrt3)/2)^2`
= `2(1)^2 + (sqrt3/2)^2 - ((sqrt3)/2)^2`
= `2+3/4 - 3/4`
= 2
shaalaa.com
Is there an error in this question or solution?
