trigonometry - NCERT ↑↑↑

Show that:

tan⁴A +tan²A = sec⁴A –sec²A

NCERT

trigonometry NCERT ↑↑↑

If √3 tan A = 1

Find the value of sin²A - cos²A

NCERT

trigonometry NCERT ↑↑

Show that: tan A + tan(90 - A) = sec A .sec (90 – A)

NCERT

trigonometry NCERT ↑↑

trigonometry NCERT ↑↑

Show that: (tan A + cot A)(sin A + cos A)= sec A + cosec A

trigonometry NCERT ↑↑

If tan A = ¾ then show that sinA.cosA = 12/25

NCERT 

trigonometry NCERT ↑↑↑

If Sin A + Cos A = √3

Then show that tanA + cotA = 1

NCERT EXEMPLARY QUESTION

trigonometry NCERT ↑↑↑

If sinθ + cosθ = p and secθ + cosecθ = q, 
then prove that q(p² – 1) = 2p

NCERT EXEMPLARY QUESTION

trigonometry - NCERT ↑↑↑↑↑

                                                                                                                                                                             

trigonometry --- NCERT ↑↑↑↑↑