Email
Chat with tutors
logo

Ask Questions, Get Answers

X
 
Answer
Comment
Share
Q)

Find $\cos 55^{\large\circ}+\cos 65^{\large \circ}+\cos 175^{\large\circ}$

$(a)\;0\qquad(b)\;1\qquad(c)\;2\qquad(d)\;3$

2 Answers

Home Ask Tuition Questions
Your payment for is successful.
Continue
...