Question

if cot (A-B)=1/root 2 and tan(A+B)=1 then what is the value of B​

Answer 1

Answer:

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Step-by-step explanation:

Given tan(A+B)=

3

⟹A+B=60

∘

⋯(1)

tan(A−B)=

3

1

⟹A−B=30

∘

⋯(2)

(1)+(2)⟹2A=90

∘

⟹A=45

∘

Put A value in (1)

⟹B=60

∘

−45

∘

=15

∘