sin35° in fraction from.
consider sin35°
sin35°=sin30°+5°=sin30°cos5°+sin5°cos°butsin30°=12,cos30°=32but5°=5×π180=5×227×180=560=112∴sin5°=112cos5°=1-sin25°=1-1122=1-1144=144-1144=143144∾1
Now, consider sin30°+5°=sin30°cos5°+cos30°sin5°=12×1+32×112
On simplify we have
sin35°=0.5+0.07=0.57=57100
Hence, sin35° in fraction form is 57100
Question 49. The result obtained by subtracting a fraction from another fraction is necessarily a fraction.
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