Question

pls solve neatly and clearly​

Answer 1

Answer:

Given,

tanA = 1

we know,

tan45° = 1

so,

A = 45°

so,

1-sin 45° / 1+ sin 45°

1 - 1/2

= ---------

1+1/2

1/2

= ----------

3/2

= After sending 3/2 to up side

2 and 2 cancel.

so,

answer is 1/3.

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