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Given that sin pie/6 = 1/2, use an equivalent trigonometric expression to show that cos= 1/2. I have no clue how to do this, can someone help me?
 one year ago
 one year ago
Given that sin pie/6 = 1/2, use an equivalent trigonometric expression to show that cos= 1/2. I have no clue how to do this, can someone help me?
 one year ago
 one year ago

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LoveUuBest ResponseYou've already chosen the best response.1
sin 30*=1/2 cos60*=1/2 u can see trignometric table for this and all for all values also
 one year ago

sabika13Best ResponseYou've already chosen the best response.1
i dont understand.. can you do it step by step
 one year ago

LoveUuBest ResponseYou've already chosen the best response.1
If cos x = 1/2 then x = cos^(1) (1/2) therefore, x = 60 degrees , 300 degrees {where x is greater than or equal to 0 and lesser than or equal to 360} or pi/3 radians, 5pi/3 radians {where x is greater than or equal to 0 and lesser than or equal to 2pi}
 one year ago

sabika13Best ResponseYou've already chosen the best response.1
okay.. so we do not need to use trigonometric identities?
 one year ago

sabika13Best ResponseYou've already chosen the best response.1
the trig identities chart*
 one year ago

sabika13Best ResponseYou've already chosen the best response.1
i think its okay.. i basically just solve sinx and cosx?
 one year ago

sabika13Best ResponseYou've already chosen the best response.1
thank u for yourhelp.
 one year ago
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