The expression (cos x sec^2x) is equal to ?
1) 1/sin(x)
2) 1/csc(x)
3) 1/sec(x)
...
Mathematics, 30.10.2020 22:30 corianrigby97
The expression (cos x sec^2x) is equal to ?
1) 1/sin(x)
2) 1/csc(x)
3) 1/sec(x)
4) 1/cos(x)
Answers: 2
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Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.
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