Which is the graph of arctan(x)?
2 answers:
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Step-by-step explanation:
Refer Fig 1 as attached
1a. angle a = angle b = 25°
AM = 8 x cos 35° = 6.553
so AB = AM x 2 = 13.1
1b. Area of sector OAB / Area of the circle
= 130 / 360
Area of sector OAB = 8x8xpi x 130/360
= 23pi
1c. Area OAB = 2 X ( AM x OM) /2 = AM x OM
OM = AM x tan (angle a) = 13.1 x tan 25°
= 6.109
so Area OAB = 6.553 x 6.109 = 40.03
1d. Area of the minor segment
= Area of sector OAB - Area of triangle OAB
= 23pi - 40.03
= 32.23
2, 3 Please refering the approach as above to find the answers
4. Refer Fig 2 as attached
a = 3
the cord is 3 cm from the centre
5. Repeat the approach of 4 above please.
Answer:
13.5
Step-by-step explanation:
well if you are asking 27%, 4% and 5% of 1000
then,
27% of 1000= (27/100)*1000= 270
4% of 1000= (4/100)*1000= 40
5% of 1000= (5/100)*1000= 50
but if you are asking for
(27 divide by 4 divide 5)% of 1000
then,
((27÷4÷5)/100)*1000
= ((27*()*(
))/100)*1000
=*
*1000
=27/2
=13.5