Start learning →

Evaluate one plus the square of tan 45°.

A0
B2
C1/2
D1
Answer & Solution
Correct answer: B. 2
Tan 45 is 1, so 1 + 1 = 2, which equals sec squared 45.
Practise this question with Quill — RRB NTPC →

Keep practising Geometry and Trigonometry

Browse all Geometry and Trigonometry questions for RRB NTPC, or explore more Mathematics topics.

Start a Geometry and Trigonometry lesson →