Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
Close
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

⇐ BackProceed to Checkout ⇒
There are no items in this cart.
Continue Shopping

Hi I have doubts in a problem the iitjee question paper 2007.I have attatched the question. When i tried adding both the equations and solving them,i could get 5 solutions ,i.e,0,π,5π/6,2π,π/6.But when i solved the equations seperately one after the other and took the common solutions, i got the answer attatched with the question (2 solutions).why is it wrong to add the 2 equations and solve them(the 1 st method i used)?

 
Hi
I have doubts in a problem the iitjee question paper 2007.I have attatched the question.
 
When i tried adding both the equations and solving them,i could get 5 solutions ,i.e,0,π,5π/6,2π,π/6.But when i solved the equations seperately one after the other and took the common solutions, i got the answer attatched with the question (2 solutions).why is it wrong to add the 2 equations and solve them(the 1st method i used)?

Question Image
Grade:11

3 Answers

Aziz Alam IIT Roorkee
askIITians Faculty 233 Points
6 years ago
229-793_5.PNG
Please check the solution
uma
12 Points
6 years ago
Sorry to say, but i had asked why dont we directly add the two equations to solve this question.
Aziz Alam IIT Roorkee
askIITians Faculty 233 Points
6 years ago
If you add the two equations you will get few solutions. Check those solutions
eg: theta-=90
is not the simultaneous solution of the two equations.

Check the solutions once you solve them while adding the equations. To be on safe side we can compare the respective solutions separately.

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

Other Related Questions on Trigonometry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Register ICAT

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More