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sin x=n sin (x+2y)
find tan( x+y)/tan y...
ans is 1+n/1-n
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how is sin 120 cos 330+cos 240 sin 330 =1??
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(tanA+secA-1)/(tanA-secA+1) is (1+sinA)/cosA..how?
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cos^2 1+cos^2 2+...........+cos^2 90=44.5...how?
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if x notequal to pi/4..then ans is a nah???
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s ..u r rite i think..may b the ques is tan(2x+y)*tan(2y+x)..then d ans is 1..rite...
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if y=tan^4x+cot^4x..then
a)y>2
b)y=2
c)y>=2
d)y<=2
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no..it cant b 4th option..ans written by srini is rite...
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what is tan 18+tan 42+root(3)tan18tan42??
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thnx...dat was vry useful...
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sin(x+y)=1 and sin(x-y)=root(3)/2...wat is tan(2x+y)/tan(x+2y)...ans is 1
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wat formula is dat??can u plz tel me proof for dat formula if u don mind..
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