Question

Find the value of 4cot²45° – sec²60° + cosec²30° + cot90⁰​

Answer 1

Step-by-step explanation:

4×1-1/4+ 1/4 +0= 4

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Answer 2

Solution:-

$→\;{\sf{4cot²45°-sec²60°+cosec²30°+cot90°}}$

Cot45° = 1, Sec60° = 2, Cosec30° = √3/2 & Cot90° = 0

$→\;{\sf{4(1)² - (2)² + (\frac{\sqrt{3}}{2})²+0}}$

$→\;{\sf{4×1 - 4 +\frac{3}{4}+0}}$

$→\;{\sf{4-4+\frac{3}{4}+0}}$

$→\;\Large{\red{\frac{3}{4}}}$

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