sin²45+cos²60+sin²30+cosec 45*sec 45
solve without using trigonometrical tables(don't put values of sin and cos but solve by simplifying the question)
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with values 0.5 +0.25+0.25+2
0.5+0.5+2
1+2=3
0.5+0.5+2
1+2=3
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MDineshKumar:
I got that values by taking one right angles isosceles triangle
once u try
it will come
there is no chance to edit the answer
first I kept 2 pics but only 1 pic got in that answer
this is to be done by taking complentary angle like. -cos (90-theta)=sin theta
edit your answer
what is the formula for sin square A + sin square B + sin square C
sin square 45+ sin square 2(30)
+ 2 cosec 45
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