Question

plese answer it is urgent I will mark brainliest​

Answer 1

Answer:

(C) -1

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Answer 2

Answer:

0

Step-by-step explanation:

y=logtan1°+logtan2°+…..+logtan45°+logtan46°+…..+logtan89°

y=logtan1°+logtan2°+……+logtan45°+logcot(90°-46°)+…….+logcot(90°-89°)

y=logtan1°+logtan2°+………logtan44°+ log(1) + logcot44°+………+logcot1°

From property of logarithm we have

loga+logb+logc=log(abc)

y=log(tan1°.tan2°.tan3°……tan44°.1.cot44°…….cot1°)

We know from trigonometric functions

Tanx.cotx=1

So cancelling the consecutive terms in the above equation we get

y=log(1.1.1.. …1)

y=log(1)

y=0