Question

plz answer it correctly i will mark it as brainliest three questions​

Answer 1

Answer:

5. (-1) ;  6. 0 7. 45°

Step-by-step explanation:

5. cot²∅+1=cosec²∅

cot²∅-cosec²∅=-1

6.17x+23y=40

23x+17y=-40

add

40x+40y=0

x+y=0

7. tanα=1

tanα=tan45

α=45

secβ=1

secβ=sec0

β=0

α+β=45+0=45

Answer 2

Answer:

$\cot ^{2} ( \alpha ) - \csc {}^{2} ( \alpha ) = - 1$

$we \: can \: say \: \alpha = 45 \\ \beta = 0 \\ so \alpha + \beta = 45$

6.ON ADDING EQN 1 AND 2 WE WILL GET

$40x + 40y = 0 \\ x + y = 0$