Thank you for registering.

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

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

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

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

LET /\ ABC BE ISOSCELES WITH AB=AC,P BE ITS INCENTRE ,GIVEN BC=AB+AP,FIND / BAC

LET /\ABC BE ISOSCELES WITH AB=AC,P BE ITS INCENTRE ,GIVEN BC=AB+AP,FIND  / BAC



Grade:12

1 Answers

Badiuddin askIITians.ismu Expert
148 Points
12 years ago

Dear MITHRESH


7070-2194_7662_untitled.JPG

In triangle APE

r =AP sinx


In triangle ADB

BD =BC/2 = ABsinx

 BC =2AB sinx


and cosx =(AP +r)/AB

             = AP(1+sinx)/AB

AP = AB cosx/(1+sinx)


given BC =AP +AB

      2AB sinx  = AB cosx/(1+sinx)  +AB

simplyfy

    sinx -cosx =1- 2sin2x

   sinx -cosx = cos2x

square

 1- sin2x = cos22x

 sin2x= sin22x

 sin2x=1

 2x=90

Please feel free to post as many doubts on our discussion forum as you can.
If you find any question Difficult to understand - post it here and we will get you the answer and detailed
solution very  quickly.
 We are all IITians and here to help you in your IIT JEE  & AIEEE preparation.

 All the best.
 
Regards,
Askiitians Experts
Badiuddin

     



Think You Can Provide A Better Answer ?

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

ASK QUESTION

Get your questions answered by the expert for free