**The value of 1-tan² 45/ 1+ tan² 45 is equal to**

(a) tan 60

(b) tan 30

(c) sin 45

(d) tan 0

**Answer :**

1-tan² 45/ 1+ tan² 45

1-1/1+1

0/2

1-tan² 45/ 1+ tan² 45 = 0

tan 0

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