Question

tan(57+theta)*tan(33-theta)​

Answer 1

cot 90 minus 33 / tan 57+theta *cot 33- theta

so cot and tan cancelled and the ans is 1

hence proved

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Answer 2

Answer:

1

Step-by-step explanation:

tan( 57+theta) × tan( 33- theta,)

= tan (57+theta) × cot [ 90-(33-theta)]

= tan(57+theta) × 1/ tan ( 90-33+theta)

= tan (57+theta) / tan ( 57+theta)

= 1

Answer= 1