Find the value of : sin30^(@)cos30^(@)...

Find the value of :
`sin30^(@)cos30^(@)`

Text Solution

Verified by Experts

The correct Answer is:

`sqrt(3)/4`

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ICSE-TRIGONOMETRICAL RATIOS OF STANDARD ANGLES-EXERCISE 23(A)

Find the value of : sin30^(@)cos30^(@)
00:27
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Find the value of : tan30^(@)tan60^(@)
00:28
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Find the value of : cos^(2)60^(@)+sin^(2)30^(@)
01:00
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Find the value of : cosec^(2)60^(@)-tan^(2)30^(@)
00:56
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Find the value of : sin^(2)30^(@)+cos^(2)30^(@)+cot^(2)45^(@)
01:21
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Find the value of : cos^(2)60^(@)+sec^(2)30^(@)+tan^(2)45^(@)
01:25
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Find the value of : tan^(2)30^(@)+tan^(2)45^(@)+tan^(2)60^(@)
01:17
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Find the value of : (tan45^(@))/(cosec30^(@))+(sec60^(@))/(cot45^(@)...
02:29
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Find the value of : 3sin^(2)30^(@)+2tan^(2)60^(@)-5cos^(2)45^(@)
01:34
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Prove that : sin60^(@)cos30^(@)+cos60^(@).sin30^(@)=1
01:48
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Prove that : cos30^(@).cos60^(@)-sin30^(@).sin60^(@)=0
01:46
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Prove that : cosec^(2)45^(@)-cot^(2)45^(@)=1
00:45
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Prove that : cos^(2)30^(@)-sin^(2)30^(@)=cos60^(@)
01:08
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Prove that : ((tan60^(@)+1)/(tan60^(@)-1))^(2)=(1+cos30^(@))/(1-cos3...
03:15
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Prove that : 3cosec^(2)60^(@)-2cot^(2)30^(@)+sec^(2)45^(@)=0.
01:35
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Prove that : sin(2 times 30^(@))=(2tan30^(@))/(1+tan^(2)30^(@))
02:16
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Prove that : cos(2 times 30^(@))=(1-tan^(2)30^(@))/(1+tan^(2)30^(@))
02:03
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Prove that : tan(2 times 30^(@))=(2tan30^(@))/(1-tan^(2)30^(@))
02:00
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ABC is an isosceles right-angled triangle. Assuming AB = BC = x, find ...
01:58
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Prove that : sin60^(@)=2sin30^(@)cos30^(@).
00:55
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