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If A and B are complementary angles, then - Mathematics

MCQ

If A and B are complementary angles, then

Options

  • sin A = sin B

  • cos A = cos B

  •  tan A = tan B

  • sec A = cosec B

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Solution

Given: A and are B are complementary angles 

Since `sec (90°-B)= cosec B`

therefore `A+B=90°`

⇒ `A=90°-B`

⇒ `sec  (90°-B)` 

⇒ `secA= cosec B` 

 

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APPEARS IN

RD Sharma Class 10 Maths
Chapter 10 Trigonometric Ratios
Q 14 | Page 57
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