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

Given, tan(90°–A) = cot(90°–B). What is the value of sin(A–B) ?

Given,
tan(90°–A) = cot(90°–B).
What is the value of sin(A–B) ?

Grade:10

2 Answers

Arun
25763 Points
one year ago
Dear student
 
As tan (90 -A) = cot (90 -B)
 
Cot A = tan B
Cos A/ sin A - sinB /cos B = 0
 
Cos (A +B) = 0
 
Hemce A +B = 90°
Vikas TU
14149 Points
one year ago
Dear student 
The explanation is incorrect , 
Cos A/ sin A = sinB /cos B 
CosA CosB – SinASinB = 0 
So , A+ B = 90 
A = 90-B 
A-B = 90-2B 
Sin(A-B) = Sin (90-2B) 
Sin(A-B) = Cos2B 
hope this helps 

Think You Can Provide A Better Answer ?

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

Other Related Questions on Discuss with Askiitians Tutors

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