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Grade: 11

                        

Tansquare20-sinsquare20/ tansquare20. sinsquare20 solve this

3 years ago

Answers : (3)

bk
11 Points
							
tan220-sin220/tan220sin220
divide and multiply by tan220
=1-cos220/sin220      ( sin220/tan220 = cos220 )
=sin220/sin220
=1
3 years ago
Aman Vaishya
22 Points
							
tan2 20o -sin2 20o/tan2 20o.sin2 20o
=tan2 20o/tan2 20o.sin2 20o – sin2 20o/tan2 20o.sin2 20o
=1/sin2 20o – 1/tan2 20o
=cosec220o – cot220o
=1                                           [Since,cosec2x– cot2x=1]
3 years ago
Soumendu Majumdar
159 Points
							
(tan^220-sin^220)/tan^220sin^220
(1-cos^220)/sin^220
sin^220/sin^220
= 1
Hope it helps!
with regards,
Soumendu
For any confusion feel free to ask
I would clear the doubts if you have any problem understanding
2 years ago
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