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(tanA/1-cotA) +(cotA/1-tanA)=1+secAcosecA

Posted by H Bansal 5 years, 10 months ago

2 answers

Aadya Singh 5 years, 10 months ago

LHS - (tanA / 1-cot A) + (cot A /1 - tan A)
=> [sinA/cosA/(1- cosA/sinA)] + [cosA/sinA/(1- sinA/cosA ]
=> [ sinA / cosA / sinA-cosA/sinA] + [ cosA/sinA/cosA-sinA/cosA]
=>[ sin²A / cosA(sinA - cosA)] + [ cos²A/sinA(cosA - sinA) ]
=> [ sin²A/cosA(sinA - cosA) ] - [ cos²A/sinA ( sinA - cosA)]
=> [( sin³ A - cos³A)/ sinAcosA(sinA - cosA)
=> (sinA - cosA)( sin²A + cos²A + sinAcosA) / sinAcosA(sinA - cosA)
=> (sin²A + cos²A + sinAcosA) / sinAcosA
=> ( 1 + sinAcosA)/ sinAcosA
=> 1/sinAcosA + 1
=> cosecA secA + 1
=> secAcosecA + 1
=> Now, LHS = RHS....So, it's prove...

2Thank You

H Bansal 5 years, 10 months ago

Pls answer fast ??

6Thank You

ANSWER

Example 17 chapter 4 how to do this question please explain

Posted by Dr. Jasmine Kaur ?? 5 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Dr. Jasmine Kaur ?? 5 years, 10 months ago

Ncert

0Thank You

꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 5 years, 10 months ago

R s aggrval

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Anish Singh 5 years, 10 months ago

NCERT?

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ANSWER

Describe any three features of black soil OR alluvial soi Or red soi.....

Posted by Himanshu Aggarwal 5 years, 10 months ago

CBSE > Class 10 > Social Science

1 answers

Aadya Singh 5 years, 10 months ago

Alluvial soil - It is very fertile soil.
It contains potash, phosphoric acid and lime which is ideal for the growth of sugarcane, wheat, rice, etc..
Soil in the drier area are more alkaline and can be productive after proper irrigation..

2Thank You

ANSWER

To verify using a graphical method that a given sequence of number is an AP

Posted by Yash Vardhan 5 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

भारत में महिलाओं की साक्षरता दर क्या है

Posted by Harshit Srivastava 5 years, 10 months ago

CBSE > Class 10 > सामाजिक विज्ञान

0 answers

ANSWER

साथ आकर संघ बनाने के उदाहरण कौन से है

Posted by Harshit Srivastava 5 years, 10 months ago

CBSE > Class 10 > सामाजिक विज्ञान

1 answers

Pradeep Sharma 5 years, 10 months ago

America, Switzerland and Australia

0Thank You

ANSWER

श्रीलंका की जातीय संरचना कैसी है

Posted by Harshit Srivastava 5 years, 10 months ago

CBSE > Class 10 > सामाजिक विज्ञान

2 answers

Azru Khan 5 years, 10 months ago

Gatil

0Thank You

Shivani Yadav 5 years, 10 months ago

Shihali

0Thank You

ANSWER

If 3x=cosecø and 3/x =cotø find the value of
3(x²-1/x).. (>_<)

Posted by ♛ ❝Ѕυнαɴα❞ ♛ 5 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

꧁༒☬Sowndu ☬༒꧂??? ꧁༒????༒꧂??? 5 years, 10 months ago

Ankesh

1Thank You

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In an ap the sum of four sum is 460 and six term is 500 find its 10 term

Posted by Sumit Shukla 5 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

What was the story about bholi

Posted by Sudha Jha 5 years, 10 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Kirandeep Kaur 5 years, 10 months ago

Bholi 's real name was sulekha . But her simplicity made her name bholi . Bholi was an ugly girl who stammered when she speak . As she was different from her siblings she was not beautiful and had marks on her face she does not get proper care from her family. Her father send her school bcoz tehsildar advised him so that it would easy to get bride groom . The teacher in school becomes mentor to her and help her to gain confidence

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A ladder has rungs 25cm apart.The rungs decrease uniformly in length from 45cm at the bottom rungs are 2×1/2m apart,what is the length of the wood required for the rungs?

Posted by Paveethra Paveethra 5 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

How to rearrange all the sentences in a meaning full sentences so what is the process

Posted by Abhishek Abhi 5 years, 10 months ago

CBSE > Class 10 > English Language and Literature

1 answers

N. K. Sharma 5 years, 10 months ago

First of all, try to know the type of sentence then arrange phrases and put them into proper order.

0Thank You

ANSWER

How to easily identify myopia and hypermetropia from problems

Posted by Shinthiya P 5 years, 10 months ago

CBSE > Class 10 > Science

1 answers

Yash Kumar 5 years, 10 months ago

Myopia isa nearsickness causes excessive curvature of eye lens , elongation of eye ball

1Thank You

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How can i learn periodic table in easy way?

Posted by Ravi Yadav 5 years, 10 months ago

CBSE > Class 10 > Science

0 answers

ANSWER

If DE||BC then find the ratio of arADE and arDECB also DE =6cm and BC=12cm

Posted by Naman Agrawal 5 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

भारत में पहली ट्रेन कब चलाई गई

Posted by Harshit Srivastava 5 years, 10 months ago

CBSE > Class 10 > सामाजिक विज्ञान

5 answers

Santan Kumar Singh 5 years, 10 months ago

1853

0Thank You

Aditya Kumar Jha 5 years, 10 months ago

In 1853,from Thane to Bombay

0Thank You

Gagan Tyagi 5 years, 10 months ago

1853

2Thank You

Abhiraj Arpan 5 years, 10 months ago

1853,from mumbai to thane

1Thank You

Dhruv Bansal 5 years, 10 months ago

In 1853

2Thank You

ANSWER

Name the 5 names of transition effects

Posted by Udit Mehandiratta 5 years, 10 months ago

CBSE > Class 10 > Computer Applications (165)

0 answers

ANSWER

Class 10th lab manual physics

Posted by Shailendra Agnihotri 5 years, 10 months ago

CBSE > Class 10 > Home Science

1 answers

Avesh Saifi 5 years, 10 months ago

Hii

1Thank You

ANSWER

Detailed summary of the book that save the earth

Posted by Jiten Giri 5 years, 10 months ago

CBSE > Class 10 > English Language and Literature

1 answers

Parvathy Parvathy 5 years, 10 months ago

This drama is set in 25th century. A historian in the museum is telling the story about 20th century; the century of the books. He tells how a book saved the earth from Martian invasion. The invaders from Mars consider themselves too intelligent for the earthlings. They think they are superior race than the inhabitants of the earth. There is a megalomaniac commander think tank who commands the team of the invader. Various members from the invaders’ team enter a library. They are unable to identify what a book is. They make several wild guesses, and finally arrive at the conclusion that it must be a communication device for the earthlings. They try to decode what is written in the book. The book is full of nursery rhymes. Their encoding tells them that earthlings must have been on a mission to attack the Mars. Fearing that, they immediately leave the earth and fly away to the distant Alpha Centauri think tank's assistant noodle becomes the king of mars and later becomes friends with earth

2Thank You

ANSWER

Please can give me the computer notes of (computer application)

Posted by Mukul Tomar 5 years, 10 months ago

CBSE > Class 10 > Computer Applications (165)

0 answers

ANSWER

How food items can make difference between life and dearhs?

Posted by Dev Barella 5 years, 10 months ago

CBSE > Class 10 > Social Science

1 answers

Yogita Ingle 5 years, 10 months ago

It is true that many a times introduction of new crops make a difference between life and death. The introduction of potato in Europe changed the lifestyle of the poor who dependent too much on potato for living. Potato was the only crop grown there. Irish peasants became so much dependent on potatoes that when disease destroyed potato crops in mid 1840's, many died of famine and starvation.

1Thank You

ANSWER

Please any one give me It(computer ) notes

Posted by Ayush Pratap Singh Singh 5 years, 10 months ago

CBSE > Class 10 > Computer Applications (165)