If cos theta = 4/5 and sin thata = 3/5 , find the value of sec^2 theta – tan^2 theta .
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Answer:
7/4
Step-by-step explanation:
cos∅=4/5
sin∅=3/5
to find:
sec^2 2∅-tan^2 2∅
=1/cos^2 2∅ - sin^2 2∅/cos^2 2∅
=2(5/4) -( 3/5)(5/4)
= 5/2 -3/4
=10-3/4
=7/4
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