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3 years ago

9

When is secxtanx equal to 0

1 answer:

bazaltina [42]3 years ago

4 0

Where does sec x = 0 and tan x = 0?sec x cannot ever be zero, but tan x = 0 when sin x = 0 Chuck norris can make sec x 0
All of these are values of x ....-2pi, -pi, 0, pi, 2pi, 3pi, ....

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Can you help meeee pls i dont understand this thanx

Maurinko [17]

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A frame of width a surrounds a 5 by 7 inch photograph. Find the expression that represents the area of the frame in terms of a.

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See diagram
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minus original aera
which is 5 by 7 which is 35

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Find the tangent ratio of angle O. Hint: Use the slash symbol (/) to represent the fraction bar, and enter the fraction with no

katovenus [111]

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3 years ago

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A paddleboat can move at a speed of 4 km/h in still water. The boat is paddled 12 km downstream in a river in the same time it

Bas_tet [7]

Answer:

Speed of the river = $\frac{4}{3}$ km per hour

Step-by-step explanation:

Speed of the boat in still water = 4 km per hour

Let the speed of the river = v km per hour

Speed of the boat upstream = (4 - v) km per hour

Time taken to cover 6 km = $\frac{\text{Distance}}{\text{Speed}}$

= $\frac{6}{4-v}$ hours

Speed of the boat downstream = (4 + v) km per hour

Time taken to cover 12 km = $\frac{12}{4+v}$ hours

Since, time taken by the boat in both the cases is same,

$\frac{6}{4-v}= \frac{12}{4+v}$

6(4 + v) = 12(4 - v)

24 + 6v = 48 - 12v

12v + 6v = 48 - 24

18v = 24

v = $\frac{24}{18}$

v = $\frac{4}{3}$ km per hour

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3 years ago