1 Answer

1 like 0 dislike
by
selected by
 
Best answer

দেওয়া আছে,
$cosecA-cotA=\frac{4}{3}$

আমরা জানি,
$cosec^2\theta-cot^2\theta=1$

সুতরাং,
$cosec^2A-cot^2A=1$

বা, $(cosecA+cotA)(cosecA-cotA)$$=1$

বা, $(cosecA+cotA) \times \frac{4}{3}=1$

[ মান বসিয়ে ]

বা, $(cosecA+cotA)=1 \times \frac{3}{4}$

$\therefore (cosecA+cotA)=\frac{3}{4}$

অর্থাৎ $(cosecA+cotA)$ এর মান $\frac{3}{4}$ [Answer]

by

Rules Applied :

  • $a^2-b^2=(a+b)(a-b)$

Related questions

10.4k questions

10.5k answers

122 comments

28 users

Welcome to QnAfy !

Ask questions, find answers, and spread the light of knowledge like the sun. On QnAfy, only registered users can post questions and answers.

If you are a teacher or student, you may register using your own name, your school/coaching center’s name, or your website’s name to actively contribute by asking or answering questions. This will help increase your or your institution’s visibility, and in the case of a website, it will boost your backlink profile as well.

So, Register Now

fb Group | fb Page
WhatsApp Message
Join Telegram Group

QnAfy – Where curiosity meets clarity.

Categories

For the best experience with math, please rotate your mobile to landscape mode or use a tablet, laptop, or PC for optimal viewing.
...