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SAAT (English)

Mathematics: sample 2

These questions are ETEC/Qiyas's own officially published trial-exam questions, shown here with attribution. They are not sold and are not part of Smart Advanced Network for Education, Development & Achievement's original question bank.
Directions

Read the following questions. Choose the right answer.

There is only ONE correct answer to each question.

For any directed angle x, we have csc²(x) − cot²(x) =

  1. cos²(x) − sin²(x)
  2. cos(x) − sin(x)
  3. sin²(x) + cos²(x)
  4. sin(x) − cos(x)
Show answer

Correct answer: C. sin²(x) + cos²(x)

Why

By the Pythagorean identity, csc²(x) − cot²(x) = 1, and 1 = sin²(x) + cos²(x).

Source: The Standardized Academic Achievement Test (SAAT) for the Science Track Trial Test (ETEC official) Open the official document

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