Question

find the value of 2 cos A- sin C is​

Answer 1

Answer:

sin cos tadhita fatith

Answer 2

Answer:

(b) 24/25

Step-by-step explanation:

By pythagoras theoram,

(BC)^2+(AB)^2=(AC)^2

or, (7)^2+(24)^2=(AC)^2

or, 49+576=(AC)^2

or, 625=(AC)^2

or, AC=√625

AC=25

Now,

2cosA-sinC=?

2×AB/AC-AB/AC

=2×24/25-24/25

=48/25-24/25

=24/25 is the answer