SAAT (English)

Mathematics: sample 11

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.

The value of cos45° sin15° + sin45° cos15° is:

1/2
√2/2
1
√3/2

Show answer

Correct answer: D. √3/2

Why

By the sine addition formula, cos45°sin15°+sin45°cos15° = sin(45°+15°) = sin60° = √3/2.

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

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