sin^2 30°-2 cos^3 60°+3 tan^4 45°
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sin^2 30°-2 cos^3 60°+3 tan^4 45°
=1/4-1/4+3=3
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Heya
_______________________________
Sin 30° = 1/2
Cos 60° = 1/2
And
Tan 45° = 1
=>
(1/2)² - 2× ( 1/2)³ + 3× ( 1 )⁴
=>
(1/2)² - (1/2)² + 3
=>
=3
_______________________________
Sin 30° = 1/2
Cos 60° = 1/2
And
Tan 45° = 1
=>
(1/2)² - 2× ( 1/2)³ + 3× ( 1 )⁴
=>
(1/2)² - (1/2)² + 3
=>
=3
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