Question

Verify Tan2A=2tanA/1-tan²A. If A =45⁰​

Answer 1

Answer:

A=30⇒2A=60

tan2A=

1−tan

2

A

2tanA

.

A=30 degrees

Show that:

tan60

∘

=

1−tan

2

30

∘

2tan30

∘

RHS:

1−tan

2

30

∘

2tan30

∘

=

1−

3

1

2×

3

1

=

2/3

2/

3

=3/

3

=

3

=tan60

∘

=LHS.

Answer 2

Step-by-step explanation:

A = 30° ⇒ 2A = 60° 2A = 2 tanA/(1 - tan2 A) A = 30° Show that: tan 60° = 2 tan 30°/ (1 - tan2 30°) Rhs