+91-8076753736 support@wiredfaculty.com

Severity: Notice

Message: Undefined variable: temp_qds

Filename: Questions_Page/Ncert_Question.php

Line Number: 320

Backtrace:

File: /home/wiredfa1/public_html/application/views/final/Questions_Page/Ncert_Question.php
Line: 320
Function: _error_handler

File: /home/wiredfa1/public_html/application/controllers/Home.php
Line: 235
Function: view

File: /home/wiredfa1/public_html/index.php
Line: 315
Function: require_once

Sponsor Area

Continuity And Differentiability

Question

$Find space dy over dx space where space straight x equals 4 straight t comma space straight y equals 4 over straight t$

Solution

straight x equals 2 at squared comma space straight y equals at to the power of 4 therefore space dx over dt equals 4 at comma space dy over dt equals 4 at cubed Now space dy over dx equals fraction numerator dx over dt over denominator dy over dt end fraction equals fraction numerator 4 at over denominator 4 at cubed end fraction equals straight t squared