3 years ago

4 equal side,2 opposite side parallel, no right angle

Mathematics

1 answer:

alekssr [168]3 years ago

5 0

Trapazoid is 4 eaqul sides 2 oppistes side parrel, no right angleAnswer here

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Sin A tan A/ 1 - cos A = 1+ sec A

aalyn [17]

$\text{L.H.S}\\\\=\dfrac{\sin A \tan A}{1- \cos A}\\\\\\=\dfrac{\sin A \cdot \tfrac{\sin A}{\cos A} }{ 1- \cos A}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~;\left[\tan A = \dfrac{\sin A }{\cos A}\right]\\\\\\=\dfrac{\tfrac{\sin^2 A}{ \cos A}}{1- \cos A}\\\\\\=\dfrac{\sin^2 A}{\cos A(1-\cos A)}\\\\\\=\dfrac{1-\cos^2 A}{\cos A( 1- \cos A)}~~~~~~~~~~~~~~~~~~~~~~~~;[\sin^2 A + \cos^2 A = 1]\\\\\\$

$=\dfrac{(1+ \cos A)(1 - \cos A)}{\cos A(1 - \cos A)}\\\\\\=\dfrac{1+ \cos A}{ \cos A}\\\\\\=\dfrac{1}{\cos A} + \dfrac{\cos A}{ \cos A}\\\\\\=\sec A + 1 \\\\\\=1+ \sec A\\\\\\=\text{R.H.S}\\\\\text{Proved.}$

8 0

2 years ago

If there was 17 boys and21 girls what would be the ratio

Lady bird [3.3K]

17 boys to 21 girls
17 boys/21 girls
17 boys:21 girls

8 0

3 years ago

- The position of an object moving in a straight line

Misha Larkins [42]

Answer:

s(t) = 2t^2-3t

19 = 2t^2-3t

2t^2-3t-19=0

t = [3 +- sqrt(9-4*2*-19)]/4

t = [3 +- sqrt(161)]/4

t = [3 +- 12.6886]/4

Positive answer:

t = [3+12.6886]/4

t = 3.9221 seconds

Step-by-step explanation:

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=y%20%3D%205x%20%20%2B%201" id="TexFormula1" title="y = 5x + 1" alt="y = 5x + 1" align="absmi

zepelin [54]

Answer:

5+5 and 5x1

Step-by-step explanation:

that is the answer

6 0

3 years ago

Aldo rented a truck for one day. There was a base fee of $18.95, and there was an additional charge of 87 cents for each mile dr

sleet_krkn [62]

Answer:

about 198 miles

Step-by-step explanation:

183.38

- 18.95

_______

164.45 divided by .87 is 198.0229885057

4 0

2 years ago