evalute:- tan-¹(1/6) + tan-¹(5/7)
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Answer:
hi
Step-by-step explanation:
tan
−1
(
1−(
21
1
)
(
3
1
)+(
7
1
)
)+tan
−1
(
1−(
40
1
)
(
5
1
)+(
8
1
)
)
=tan
−1
(
20
10
)+tan
−1
(
39
13
)
=tan
−1
(
2
1
)+tan
−1
(
3
1
)
=tan
−1
(
1−(
20
1
)
(
2
1
)+(
3
1
)
)
tan
−1
(
5
5
)=tan
−1
1=(
4
π
)
I hope i help you
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