solve for 2cos² 30°-1
Answers
Answered by
1
Answer:
Answer is 3/2-1=1/2
It is the answer
Answered by
2
Answer:
1/2
Step-by-step explanation:
cos 30=√3/2
2×(√3/2)²-1
=2×3/4-1
=3/2-1
=1/2
Similar questions