Solve the following: 1)tan35°+tan10°+tan35°x tan10°=?
1 Answer
May 3, 2018
See the answer below...
Explanation:
Formula:-
#color(red)(ul(bar(|color(green)(tan("A"+"B")=(tan"A"+tan"B")/(1-tan"A" cdot tan"B"))|#
#tan45^@=tan(35^@+10^@)=(tan35^@+tan10^@)/(1-tan35^@ cdot tan10^@)# Even, we know,
#color(red)(tan45^@=1#
#(tan35^@+tan10^@)/(1-tan35^@ cdot tan10^@)=1#
#=>(tan35^@+tan10^@)=(1-tan35^@ cdot tan10^@)#
#=>(tan35^@+tan10^@+tan35^@ cdot tan10^@)=1# Hope it helps...
Thank you...
:-)
