Evaluate cot15xcot33xcot45xcot57xcot75-cos0
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➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡➡In terms of the right triangles used to define trigonometric functions,
cos(x
)=
adjacent side
hypotenuse
. When
x
=
0
,
adjacent side length
=
hypotenuse length
. Therefore,
cos
(
0
)
=
1
.
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0
Answer:
In this question u just have to make pairs
cot15×cot 75×cot33×cot57×cot45
the elements are now arranged now convert cot15 and cot33 into tan tan75 and tan 57
now each term will get cancelled and ur final answer will be 1
Step-by-step explanation:
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