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3 years ago

2 sin(2theta) _______________ (1 + cos(2theta)) (1 –tan^2theta)

Mathematics

1 answer:

Studentka2010 [4]3 years ago

7 0

Answer:

For numerator

2sin(2∅)=2(2sin∅cos∅)

For Denominator

(1+cos(2∅))(1+tan²∅)

=(1+cos(2∅))(sec²∅)

=(1+cos²∅-sin²∅)(sec²∅)

Recall. 1-sin²∅=cos²∅

=2cos²∅(sec²∅)

=2.

Answer is...

2(2sin∅cos∅)/2

=2sin∅cos∅ or sin(2∅)

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3 years ago

Which are the solutions of x2 = –7x – 8?

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You can start by rewriting the equation so that the right side equals zero. Add $-7x$ and $8$ to both sides.

$x^2+7x+8=0$

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8 0

3 years ago

Read 2 more answers

Need help doing this, show steps if you could

Anna71 [15]

Answer:

p = (0.5 , 5)

Step-by-step explanation:

D(-6 ,4) E(7 ,6)

For the line FP to be a median, the point p must have the intermediate value at x and at y between points D and E

p = (Dx + Ex)/2 , (Dy + Ey)/2

p = (-6 + 7)/2 , (4 + 6)/2

p = 1/2 , 10/2

p = (0.5 , 5)

This is because for a medium to be the point p has to be right in the middle of the other 2 vertices

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3 years ago

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Bezzdna [24]

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3 years ago

(Find m∠RTS) m∠RTS=

Arturiano [62]

Answer:

$m\angle RTS=34^{\circ}$