Question

I want to know solution

Answer 1

HELLO DEAR,




GIVEN THAT:-

PR = 13cm
PQ = 12cm
QR = ?


IN ∆ PQR , < Q = 90°

use Pythagoras theorem,

PR² = PQ² + QR²


(13)² = (12)² + QR²


QR² = 169 - 144


QR² = 25


QR = 5


now,


tanp = QR / PQ = 5/12


AND,

cotR = QR / PQ = 5/12

SO ,

tanp - cotR = 5/12 - 5/12

=> 0


I HOPE ITS HELP YOU DEAR,
THANKS

Answer 2

Hey mate,

We know that tan x = perpendicular / base
                       cot x = base / perpendicular 

We Could have found the value Hypotenuse 
And substituted the values but before that we got our solution
i.e = 0
 
See the images for clear understanding 
Hope u understand!!