Question

Hiiiiiiii dear!!! plz.... help me in this question
then I'll mark you as a brainliest

Answer 1

Answer:

Step-by-step explanation:

Sin theta = 12/13........

Cos theta = root of 1-sin square theta

=root of 1-(12/13)square

Root of 1-(144/169)

Root of (169-144)-169

Root of 25/169

5/13

Therefore.

Sin theta =12/13

Cos theta =5/13

According to given qn...

=(2*12/13-3*5/13)/(4*12/13-9*5/13)

=(24/13-15/3)/(48/13-45/13)

=9/3

=3...

Hope it helps you my dear friend..

Please mark my answer as brainliest.. ✌❤

Answer 2

Answer:

Step-by-step explanation:

cosec ∅ - H/P

In triangle ABC,   let AC be 13k and BC be 12k

by pythagoras theorom,

AC²=AB²+BC²

AB²=AC²-BC²

      =[13K]² -[12K]²

      =169K -144K

  AB²=25K

 AB=√25K

  AB  =5K

then,sin∅=12/13

       cos∅=5/13

2×12/13 -3×5/13  / 4×12/13 - 9×5/13

7/24-15

7/9

ANSWER  is 7/9