3 years ago

Evaluate the expression without using a calculator. Sin 30 Cos 60+ Sin 60 Cos30

Mathematics

2 answers:

Lady_Fox [76]3 years ago

5 0

=sin30cos60 + sin60cos30
=(1/2)(1/2) + (√3/2)(√3/2)
=1/4 + 3/4
=1+3/4
=4/4
=1

noname [10]3 years ago

4 0

Solutions

$Sin30cos60 + Sin60cos30

=(1/2)(1/2) + ( \sqrt{3/2})( \sqrt{3/2})

=1/4 + 3/4

=1+3/4

=4/4

=1$

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