✔ Correct Answer: D. All of these
The correct answer to the question “Which of the following is true? sin² 60⁰ + cos² 60⁰ = 1, sin² 45⁰ + cos² 45⁰ = 1, sin² 45⁰ − cos² 45⁰ = 0, All of these” is All of these. This question belongs to Mathematics. Practice the related questions below to master this topic for your FPSC, PPSC and NTS tests.
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