Question

find the value sin^2 60°+cos^2 30° +tan^2 45°​

Answer 1

Answer:- 5/2

Step by step explanation:-

sin^2 60° + cos^2 30° + tan^2 45°

= sin^2 (90-30)° + cos^2 30° + 1

= cos^2 30° + cos^2 30° + 1

= 2 cos^2 30° + 1

= 2* {(root3)/2}^2 + 1

= 2* (3/4) + 1

= (3+2)/2

= 5/2

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