i) tan30° + cosec45°. sec45° + cos60°
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Question :
(1) tan30+cosec45.sec45 +cos60
Trigonometric Values :
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0
Answer:
(2√3 + 15) / 6
Step-by-step explanation:
tan 30 ° = 1/√3
cosec 45 ° = √2
sec 45 ° = √2
cos 60 ° = 1/2
tan 30° + cosec 45° . sec 45° + cos 60° = 1/√3 + √2 . √2 + 1/2
= 1/√3 + 2 + 1/2
= (2 + 4√3 + √3 ) / 2√3
= ( 2 + 4√3 + √3 ) / 2√3 * √3 / √3
= ( 2√3 + 12 + 3 ) /6
= ( 2√3 + 15 ) / 6
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