Answer:
false
Step-by-step explanation:
1-2cos²r=1-2(1-sin²r)=1-2+2sin²r=2sin²r-1
Answer:
15.7
Step-by-step explanation:
The circumference of a circle is given by
C = pi *d where d is the diameter
C = 3.14*5
C= 15.7
Angle B would be 60°, so the answer is acute angle because complementary angles add up to 90° or a right angle
Answer:
4/663
Step-by-step explanation:
(4/52)×(4/51)
= 4/663
= 0.00603
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