Answer:
idk dont ask me
Step-byi-step explanation:
By applying the formula of trigonometric function the right hand side will
be equal to right hand side which is 1-
/
=cos2x.
Given: 1-
/
=cos2x.
Taking right hand side first which is cos2x.
We know that cos2x=
Now we will solve the left hand side of the equation give which is
1-
/
=1-
/1+
[secant square x minus tangent square x is equal to 1]
By putting both values left hand side and right hand side we will find our solution which is :
1-tan^{2}x/1+tan^{2}x=1-
/1+
.
Hence proved
Learn more about trigonometric functions at brainly.com/question/24349828
#SPJ10
Answer:
24
Step-by-step explanation:
12 + (12)
first do for the bracket
12 + 12
24
Answer:

Step-by-step explanation:
<em>thinked</em><em> </em><em>number</em><em> </em><em>=</em><em> </em><em>x</em>
<em>multiply</em><em> </em><em>by</em><em> </em><em>3</em>
<em>
</em>
<em>add</em><em> </em><em>4</em><em> </em>
<em>
</em>
<em>square</em><em> </em><em>the</em><em> </em><em>result</em>
<em>
</em>
<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em>
<em>brainliest</em><em> </em><em>appreciated</em>
<em>good</em><em> </em><em>luck</em><em>!</em><em> </em><em>have</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>!</em>
Answer:
Step-by-step explanation:
- Rectangle has properties:
- Diagonals are congruent
- Opposite sides are congruent
- All angles are right
<h3>Given</h3>
- m∠ABD = 30°
- AC = 16 in
- BC = ?
<h3>Solution</h3>
<u>As per properties mentioned above we have:</u>
ΔABD is right triangle with ∠B - 30°, ∠A- 90°, ∠D - 60°
Side opposite to 30 is half of the length of the hypotenuse
<u>AD is opposite to ∠B and BD is the hypotenuse, then:</u>
- AD = 1/2*BD
- AD = 1/2(16)
- AD = 8 in
and