if cos theta is equal to 12 upon 13 then find the value of tan theta
Answers
Answered by
0
Answer:
If
θ
were in Q1 then we would simply be dealing with the internal angles of a
5
,
12
,
13
right angled triangle.
Note that:
5
2
+
12
2
=
25
+
144
=
169
=
13
2
Hence in Q1 we would have:
sin
θ
=
12
13
and
tan
θ
=
12
5
In Q2,
cos
θ
<
0
, so cannot be equal to
5
13
, so there is an error in the question.
In Q4, we would find
sin
θ
=
−
12
13
and
tan
θ
=
−
12
5
.
Answered by
5
Answer:
It is given that the value of costheta is 12/13
let in a triangle ABC
angle A =theta
so cos angle A=12/13=AB/AC
so AB=12 and AC=13
hence BC=√AC^2-AB^2
BC=√169-144
BC=5
hence tan theta=opp./adj.
=5/12
Similar questions