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Question 80Asked in BPSC TRE 3.0 (2024) Mathematics Class 9-10

The value of sin²40º + sin²50º issin²40º + sin²50º का मान है

sin²40º + sin²50º का मान है
  1. A11
  2. B00
  3. C2sin²40º2sin²40º
  4. DMore than one of the aboveउपर्युक्त में से एक से अधिक
  5. ENone of the aboveउपर्युक्त में से कोई नहीं
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Correct answer: (A) 11

Explanation

sin 50º = cos 40º, so sin²40º + cos²40º = 1.sin 50º = cos 40º, अतः sin²40º + cos²40º = 1।

From BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper

This is question 80 of BPSC TRE 3.0 (2024) Mathematics Class 9-10 — Previous Year Paper. See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.