NDA || Mathematics || Trigonometric ratios || Quiz

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Question 1

What is tan⁴A – sec⁴A + tan²A + sec²A equal to?

• A0
• B1
• C2
• D–1

Question 2

Let sin x + sin y = cos x + cos y for all  What is  equal to?

• A1
• B2
• C
• D

Question 3

?

• A
• B1
• C-1
• D0

Question 4

If ,  then

• A3
• B2
• C1
• D0

Question 5

If  then  is equal to:

• A
• B
• C
• D

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