SOLUTION: Hi, Thanks to whoever can solve this Evaluate the given expression show all work Express your answer as an exact value A) Sin 240 + Cos 120 B)2/sin^2 45�

SOLUTION: Hi, Thanks to whoever can solve this Evaluate the given expression show all work Express your answer as an exact value A) Sin 240 + Cos 120 B)2/sin^2 45� - 3/cos^2 30

Question 975996: Hi,
Thanks to whoever can solve this
Evaluate the given expression show all work Express your answer as an exact value
A) Sin 240 + Cos 120 B)2/sin^2 45� - 3/cos^2 30� C) Cos 30�tan 45�
Answer by anand429(138) (Show Source): You can put this solution on YOUR website!
A.
sin(240) + cos (120)
= sin (180+60) + cos(90+30)
= -sin(60) -sin(30)
=
=
B.

=
=4-8/3
=4/3
C.
cos30 * tan 45
=
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