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Edited table :

$$\sf \color{aqua}{Trigonometry\: Table}\\ \blue{\boxed{\boxed{\begin{array}{ |c |c|c|c|c|c|} \sf \red{\angle A} & \red{\sf{0}^{ \circ} }&\red{ \sf{30}^{ \circ} }& \red{\sf{45}^{ \circ} }& \red{\sf{60}^{ \circ}} &\red{ \sf{90}^{ \circ}} \\ \hline \\ \rm \red{sin A} & \green{0} & \green{\dfrac{1}{2}}& \green{\dfrac{1}{ \sqrt{2} }} &\green{ \dfrac{ \sqrt{3}}{2} }&\green{1} \\ \hline \\ \rm \red{cos \: A} & \green{1} &\green{ \dfrac{ \sqrt{3} }{2}}&\green{ \dfrac{1}{ \sqrt{2} }} & \green{\dfrac{1}{2}} &\green{0} \\ \hline \\\rm \red{tan A}& \green{0} &\green{ \dfrac{1}{ \sqrt{3} }}&\green{1} & \green{\sqrt{3}} & \rm \green{\infty} \\ \hline \\ \rm \red{cosec A }& \rm \green{\infty} & \green{2}& \green{\sqrt{2} }&\green{ \dfrac{2}{ \sqrt{3} }}&\green{1} \\ \hline\\ \rm \red{sec A} & \green{1 }&\green{ \dfrac{2}{ \sqrt{3} }}& \green{\sqrt{2}} & \green{2} & \rm \green{\infty} \\ \hline \\ \rm \red{cot A }& \rm \green{\infty} & \green{\sqrt{3}}& \green{1} & \green{\dfrac{1}{ \sqrt{3} }} & \green{0}\end{array}}}}$$

1Thank You

Aseem Mahajan 2 years, 5 months ago

$$ \sf \bf :longmapsto xcosA = 8$$
$$\sf \bf :longmapsto cosA=\dfrac{8}{x}$$
Taking second equation,
$$\sf \bf :longmapsto 15cosecA = 8secA$$
$$\sf \bf :longmapsto 15\dfrac{1}{sinA} = 8\dfrac{1}{cosA}$$
$$\sf \bf :longmapsto tanA = \dfrac{15}{8}$$

Thus, you can see using a triangle that sides are respectively, 15k, 8k, 17k
$$\sf \bf :longmapsto cosA = \dfrac{8}{17}$$
Hence , x = 17

More information:

[tex]\sf \color{aqua}{Trigonometry\: Table}\\ \blue{\boxed{\boxed{\begin{array}{ |c |c|c|c|c|c|} \sf \red{\angle A} & \red{\sf{0}^{ \circ} }&\red{ \sf{30}^{ \circ} }& \red{\sf{45}^{ \circ} }& \red{\sf{60}^{ \circ}} &\red{ \sf{90}^{ \circ}} \\ \hline \\ \rm \red{sin A} & \green{0} & \green{\dfrac{1}{2}}& \green{\dfrac{1}{ \sqrt{2} }} &\green{ \dfrac{ \sqrt{3}}{2} }&\green{1} \\ \hline \\ \rm \red{cos \: A} & \green{1} &\green{ \dfrac{ \sqrt{3} }{2}}&\green{ \dfrac{1}{ \sqrt{2} }} & \green{\dfrac{1}{2}} &\green{0} \\ \hline \\\rm \red{tan A}& \green{0} &\green{ \dfrac{1}{ \sqrt{3} }}&\green{1} & \green{\sqrt{3}} & \rm \green{\infty} \\ \hline \\ \rm \red{cosec A }& \rm \green{\infty} & \green{2}& \green{\sqrt{2} }&\green{ \dfrac{2}{ \sqrt{3} }}&\green{1} \\ \hline\\ \rm \red{sec A} & \green{1 }&\green{ \dfrac{2}{ \sqrt{3} }}& \green{\sqrt{2}} & \green{2} & \rm \green{\infty} \\ \hline \\ \rm \red{cot A }& \rm \green{\infty} & \green{\sqrt{3}}& \green{1} & \green{\dfrac{1}{ \sqrt{3} }} & \green{0}\end{array}}}}[/tex]

1Thank You

Aseem Mahajan 4 years, 3 months ago

1Thank You

ANSWER

Geographical time scale ,

Posted by Jagdish Upreti 4 years, 3 months ago

CBSE > Class 11 > Geography

0 answers

ANSWER

Natural resources

Posted by Parth Chouksey 4 years, 3 months ago

CBSE > Class 08 > Science

2 answers

Seema Jain 4 years, 2 months ago

The resources that we get from nature are called natural resources some examples of it are water ,air and sunlight etc

0Thank You

Ipsita Pattnayak 4 years, 3 months ago

Water, air, oxygen, trees Resources that are drawn from Nature are called natural resources.

2Thank You

ANSWER

Accept the number of days from the user and calculate the charge for library according to following : Till five days : Rs 2/day. Six to ten days : Rs 3/day. 11 to 15 days : Rs 4/day After 15 days : Rs 5/day

Posted by Aman Pandey 4 years, 3 months ago

CBSE > Class 11 > Computer Science

2 answers

Sourav Kundu 4 years, 2 months ago

days=int(input('enter the number of days:')) if (days<=5): print('library charge is',days*2) elif (days<=10): print('library charge is',days*3) elif (days<=15): print('library charge is',days*4) elif(days>15): print('library charge is ',days*5) else: print('invalid input')

0Thank You

Akhil K 4 years, 3 months ago

2Thank You

ANSWER

A box contains cards number 6 to 50. A card is drawn at random from the box. The probability that the drawn card has a number which is a perfect square like 4, 9....is

Posted by Sharvari Nikam 4 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Aseem Mahajan 4 years, 3 months ago

How 6 aren't 5? And total are 50 not 54

0Thank You

Its Nav Sandhu ✌✌ 4 years, 3 months ago

6 to 50 there were 6 perfect square and total no. 54 so P (E) :- 6/54 = 3/27 = 1/9 answer

1Thank You

Aseem Mahajan 4 years, 3 months ago

Perfect square number from 1 to 50 are only 5 (as 7²=49)
$$\sf \bf :\longmapsto P = \dfrac{5}{50} = \dfrac{1}{10}$$

0Thank You

ANSWER

Separation of food

Posted by Shahida Salaria 4 years, 3 months ago

CBSE > Class 06 > Science (OLD)

1 answers

Chirag Sachdeva 4 years, 3 months ago

0Thank You

ANSWER

You are Ajay. You have forgotten to do your homework and without a legitimate excuse, you’re sure to get punished by the teacher. In an attempt to make an excuse, you have decided to come up with an elaborate story to make the teacher believe your excuse or at the very least have a good laugh. Use any of the word prompts given in the box below to help you write your ruse. Write the story in about 120 -150 words.

Posted by M K Shreya 4 years, 3 months ago

CBSE > Class 09 > English Lang & Lit. (184)

3 answers

M K Shreya 4 years, 2 months ago

It was good thank you

4Thank You

Anshika Patel 4 years, 3 months ago

As I am Ajay Mam I forgotten to do my work because when I going home from school so there was much traffic and I reach my home at 03:00 than some guest come at my home than no one was at home so I taken care of guest and maken tea and all ..... Than my mom came at 4:30 than at time I went coaching than I came at 5:40 from coaching .....And my coaching teacher had given homework that tomorrow is your test in any of you had poor marks so I will beat u much and will call your parents..... Than I started learning the coaching work that coachingteacher had given.... Til 07:00I had completed my coaching work than when I was taking out my homework copy of school the lighthas gone than the light doesn't came that night I sleep .......that the light came at 05:00 am then there was next morning(today) I forget to do my work in hurry...... Because I had to come school at 07:00 am..... Mam/Sir plz tell me how was my story

15Thank You

Anchal Yadav 4 years, 3 months ago

Hello mam

10Thank You

ANSWER

Define cell cycle

Posted by Kishan Bhardwaj 4 years, 3 months ago

CBSE > Class 11 > Biology

2 answers

Sidharth Sehrawat 4 years, 3 months ago

Cell cycle is defined as the dividing of parent cell in two daughters cell

0Thank You

Ankit ............ 4 years, 3 months ago

It is the sequence of events by which a cell duplicates its genome synthesise or the other constituents of cells and eventually divides into two daughter cells is called cell cycle

2Thank You

ANSWER

Aap kon ho

Posted by Harshita Singh 4 years, 3 months ago

CBSE > Class 05 > EVS