Question

(1-tan2 45/1+tan2 45) + cos2 30 - cot2 30 + sin 30.​

Answer 1

Answer:

$\frac{1-tan^{2}45^{o}}{1+tan^{2}45^{o}}$ + cosec²30° - cot²30° + sin30° = 3/2

Step-by-step explanation:

Given: $\frac{1-tan^{2}45^{o}}{1+tan^{2}45^{o}}$ + cosec²30° - cot²30° + sin30°

= $\frac{1-1^{2}}{1+1^{2}}$ + 2² - (√3)² + 1/2

= 0 + 4 - 3 + 1/2

= 1 + 1/2

= 3/2

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