Answer:
<h2>See the explanation.</h2>
Step-by-step explanation:
Sin2α = 2SinαCosα.
Cos2α = (Cosα)^2 - (Sinα)^2.
Sin4α can be written as Sin2(2α).
Similarly Cos4α can be written as Cos2(2α).
It is given that tanα=3.
Sinα(Sinα) = [], the values either be both positive or both negative, as the value of tanα is positive only on first and third quadrant.
Sin4α = .
Cos4α =
Answer:
200.96 cm³
Step-by-step explanation:
Volume of a cone = πr²h/3
Pi, π = 3.14
Radius, r = diameter/2
= 8 cm/2
= 4 cm
Height, h = 12 cm
Volume of a cone = πr²h/3
= 3.14 * (4 cm)² * 12 cm / 3
= 3.14 * 16 cm² * 12 cm / 3
= 602.88 cm³/3
= 200.96 cm³
Volume of a cone = 200.96 cm³
Answer:
Step-by-step explanation:
The anwser is C
the inverse of 5x is x/5 and the inverse of +4 is -4 so the answer would be x-4/5
Using the powers of 9, it is found that the last digit of the product will always be either 1 or 9.
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The multiplication of as many 9's as you want is equivalent to the powers of 9, which are:
....
Thus, the last digit of the products will always be either 1 or 9.
A similar problem is given at brainly.com/question/20692373