Question

tan2 60+4 cos2 45 +3sec2 30+5cos2 90=​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Notice,

tan260∘+4cos245∘+3sec230∘+5cos290∘csc30∘+sec60∘−cot230∘  

=(3√)2+4(1/2√)2+3(2/3√)2+5(0)22+2−(3√)2  

=3+2+4+02+2−3  

=91  

=9

Step-by-step explanation: