Express the following as trigonometric ratio of complementary angle of θ.

(i) cos θ (ii) sec θ

(iii) cot θ (iv) cosec θ

(v) tan θ

In a right hypotenuse AC = 10 cm and ∠A = 60°, then find the length of the remaining sides.

In a rectangle ABCD, BD : BC = 2 : √3, then find ∠BDC in degrees.

Express the following as trigonometric ratio of complementary angle of 90^o- θ.

(i) tan (90^o- θ)

(ii) cos (90^o- θ)

Fill up the blanks by an angle between 0^oand 90^o:

(i) sin 70^o = cos(…) (ii) sin 35^o = cos(…)

(iii) cos 48^o=sin (…) (iv) cos 70^o = sin (…)

(v) cos 50^o = sin (…) (vi) sec 32^o=cosec(…)