Question

what is the measure of a where
tan a=1​

Answer 1

Step-by-step explanation:

tanA=

3

1

sinB=

2

1

cos(A+B)=?

cos(A)

sinA

=

2

1

×

3

2

sinA=

2

1

sinB=

2

1

⇒B=30

0

cosA=

2

3

=A=30

0

cos(A+B)=cos(30

0

+30

0

)

=cos60

0

=

2

1

Ans.

Answer 2

Answer:

45

Step-by-step explanation:

a=45

because tan45=1