1 + cot 2 3 0 ∘ − sec 2 4 5 ∘ =, 4 1 , 2 1 − 3 , 2, 0

1 + cot 2 3 0 ∘ − sec 2 4 5 ∘ = 1 + ( 3 ) 2 − ( 2 ) 2 = 2

1 + cot 2 3 0 ∘ − sec 2 4 5 ∘ =

Question: Answered & Verified by Expert

$1+\cot ^2 30^{\circ}-\sec ^2 45^{\circ}=$

MathematicsTrigonometric Ratios & IdentitiesAP EAMCETAP EAMCET 2022 (07 Jul Shift 1)

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Solution:

1667 Upvotes Verified Answer

The correct answer is: $2$

$1+\cot ^2 30^{\circ}-\sec ^2 45^{\circ}=1+(\sqrt{3})^2-(\sqrt{2})^2=2$

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